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Transcription factors are crucial regulators of gene expression . Accurate quantitative definition of their intrinsic DNA binding preferences is critical to understanding their biological function . High-throughput in vitro technology has recently been used to deeply probe the DNA binding specificity of hundreds of euk... | Transcription is the process by which the information contained within DNA is copied to a short-lived molecule called RNA so that it can be transported to other areas of the cell for various purposes . Transcription factors are key components in this process . These proteins recognise and gather at specific sequences o... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology"
] | 2015 | Building accurate sequence-to-affinity models from high-throughput in vitro protein-DNA binding data using FeatureREDUCE |
The lateral amygdala ( LA ) acquires differential coding of predictive and non-predictive fear stimuli that is critical for proper fear memory assignment . The neurotransmitter dopamine is an important modulator of LA activity and facilitates fear memory formation , but whether dopamine neurons aid in the establishment... | When we experience a situation that causes us to feel fearful , the brain processes information about the events that led up to it . This information is encoded by groups of nerve cells called neurons in a region of the brain called the lateral amygdala . The nerve cells communicate with each other through chemicals ca... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | A genetic link between discriminative fear coding by the lateral amygdala, dopamine, and fear generalization |
We associate small numbers with the left and large numbers with the right side of space . Recent evidence from human newborns and non-human animals has challenged the primary role assigned to culture , in determining this spatial numerical association ( SNA ) . Nevertheless , the effect of individual spatial biases has... | Most of the world modern-day languages are written from left to right – but what about numbers ? As it turns out , the majority of people also represent numbers using a ‘mental line’ , with smaller numbers on the left and larger numbers on the right . Some researchers argue that this phenomenon results from the way hum... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2020 | Numerical magnitude, rather than individual bias, explains spatial numerical association in newborn chicks |
Toxoplasma gondii , a protozoan parasite , undergoes a complex and poorly understood developmental process that is critical for establishing a chronic infection in its intermediate hosts . Here , we applied single-cell RNA-sequencing ( scRNA-seq ) on >5 , 400 Toxoplasma in both tachyzoite and bradyzoite stages using th... | Toxoplasma gondii is a single-celled parasite that can infect most warm-blooded animals , but only reproduces sexually in domestic and wild cats . Distantly related to the malaria agent , it currently infects over a quarter of the world’s human population . Although it is benign in most cases , the condition can still ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"tools",
"and",
"resources",
"microbiology",
"and",
"infectious",
"disease"
] | 2020 | A single-parasite transcriptional atlas of Toxoplasma Gondii reveals novel control of antigen expression |
The canonical action of the p85α regulatory subunit of phosphatidylinositol 3-kinase ( PI3K ) is to associate with the p110α catalytic subunit to allow stimuli-dependent activation of the PI3K pathway . We elucidate a p110α-independent role of homodimerized p85α in the positive regulation of PTEN stability and activity... | Many cancers arise due to genetic mutations that allow cells to proliferate uncontrollably . Cell proliferation and many other cell processes can be regulated through a signaling pathway that involves an enzyme called PI3K . This ‘heterodimeric’ enzyme is made up of two protein subunits , one of which is called p85α an... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2015 | Regulation of the PI3K pathway through a p85α monomer–homodimer equilibrium |
The bacterial Min protein system provides a major model system for studying reaction-diffusion processes in biology . Here we present the first in vitro study of the Min system in fully confined three-dimensional chambers that are lithography-defined , lipid-bilayer coated and isolated through pressure valves . We iden... | Some proteins can spontaneously organize themselves into ordered patterns within living cells . One widely studied pattern is made in a rod-shaped bacterium called Escherichia coli by a group of proteins called the Min proteins . The pattern formed by the Min proteins allows an E . coli cell to produce two equally size... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"physics",
"of",
"living",
"systems"
] | 2016 | Mapping out Min protein patterns in fully confined fluidic chambers |
Little is known about venom in young developmental stages of animals . The appearance of toxins and stinging cells during early embryonic stages in the sea anemone Nematostella vectensis suggests that venom is already expressed in eggs and larvae of this species . Here , we harness transcriptomic , biochemical and tran... | Some animals produce a mixture of toxins , commonly known as venom , to protect themselves from predators and catch prey . Cnidarians – a group of animals that includes sea anemones , jellyfish and corals – have stinging cells on their tentacles that inject venom into the animals they touch . The sea anemone Nematostel... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology",
"evolutionary",
"biology"
] | 2018 | Dynamics of venom composition across a complex life cycle |
The p53 transcription factor is a potent suppressor of tumor growth . We report here an analysis of its direct transcriptional program using Global Run-On sequencing ( GRO-seq ) . Shortly after MDM2 inhibition by Nutlin-3 , low levels of p53 rapidly activate ∼200 genes , most of them not previously established as direc... | The growth , division and eventual death of the cells in the body are processes that are tightly controlled by hundreds of genes working together . If any of these genes are switched on ( or off ) in the wrong cell or at the wrong time , it can lead to cancer . It has been known for many years that the protein encoded ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"cancer",
"biology"
] | 2014 | Global analysis of p53-regulated transcription identifies its direct targets and unexpected regulatory mechanisms |
The striatum integrates excitatory inputs from the cortex and the thalamus to control diverse functions . Although the striatum is thought to consist of sensorimotor , associative and limbic domains , their precise demarcations and whether additional functional subdivisions exist remain unclear . How striatal inputs ar... | To fully understand how the brain works , we need to understand how different brain structures are organized and how information flows between these structures . For example , the cortex and thalamus communicate with another structure known as the basal ganglia , which is essential for controlling voluntary movement , ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | A comprehensive excitatory input map of the striatum reveals novel functional organization |
The enterococcal cytolysin is a virulence factor consisting of two post-translationally modified peptides that synergistically kill human immune cells . Both peptides are made by CylM , a member of the LanM lanthipeptide synthetases . CylM catalyzes seven dehydrations of Ser and Thr residues and three cyclization react... | Enterococcus faecalis is a bacterium that is usually found living harmlessly in the gut of humans and other mammals . However , over the past few decades hospitals have noted an increase in the number of hospital-acquired infections caused by antibiotic-resistant strains of E . faecalis . Many of the E . faecalis strai... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2015 | The enterococcal cytolysin synthetase has an unanticipated lipid kinase fold |
The spinal cord has the capacity to coordinate motor activities such as locomotion . Following spinal transection , functional activity can be regained , to a degree , following motor training . To identify microcircuits involved in this recovery , we studied a population of mouse spinal interneurons known to receive d... | Circuits of nerve cells , or neurons , in the spinal cord control movement . After an injury to the spinal cord , the connections between the brain and spinal neurons may be severed , meaning that the spinal circuits can no longer work properly . This loss of communication between the brain and the spinal cord often le... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Spinal microcircuits comprising dI3 interneurons are necessary for motor functional recovery following spinal cord transection |
White adipose tissue ( WAT ) remodeling is dictated by coordinated interactions between adipocytes and resident stromal-vascular cells; however , the functional heterogeneity of adipose stromal cells has remained unresolved . We combined single-cell RNA-sequencing and FACS to identify and isolate functionally distinct ... | Fat tissue , also known as white adipose tissue , specializes in storing excess calories . Much of this storage happens under the skin , but fat tissue can also build up inside the abdomen and surround organs , where it is known as ‘visceral’ fat . When visceral fat tissue is unhealthy , it may help diseases such as di... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"research",
"communication",
"cell",
"biology"
] | 2018 | Identification of functionally distinct fibro-inflammatory and adipogenic stromal subpopulations in visceral adipose tissue of adult mice |
One of the leading approaches to non-invasively treat a variety of brain disorders is transcranial magnetic stimulation ( TMS ) . However , despite its clinical prevalence , very little is known about the action of TMS at the cellular level let alone what effect it might have at the subcellular level ( e . g . dendrite... | The brain’s billions of neurons communicate with one another using electrical signals . Applying a magnetic field to a small area of the scalp can temporarily disrupt these signals by inducing small electrical currents in the brain tissue underneath . The currents interfere with the brain’s own electrical signals and t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Transcranial magnetic stimulation (TMS) inhibits cortical dendrites |
During development , tissue repair , and tumor growth , most blood vessel networks are generated through angiogenesis . Vascular endothelial growth factor ( VEGF ) is a key regulator of this process and currently both VEGF and its receptors , VEGFR1 , VEGFR2 , and Neuropilin1 ( NRP1 ) , are targeted in therapeutic stra... | Blood flows through blood vessels to carry oxygen and nutrients towards , and waste away from , the cells of the body . New blood vessels are formed not only during development but also throughout life as part of normal tissue growth and repair . However , blood vessels may also form as a consequence of diseases , such... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology"
] | 2014 | Neuropilin-1 functions as a VEGFR2 co-receptor to guide developmental angiogenesis independent of ligand binding |
Iron-sulfur ( Fe-S ) clusters are essential for many cellular processes , ranging from aerobic respiration , metabolite biosynthesis , ribosome assembly and DNA repair . Mutations in NFU1 and BOLA3 have been linked to genetic diseases with defects in mitochondrial Fe-S centers . Through genetic studies in yeast , we de... | Proteins perform almost all of the tasks necessary for cells to survive . Some of these proteins need to contain collections of iron and sulfur ions known as iron-sulfur clusters to work properly . The iron-sulfur clusters are first assembled from individual ions and then attached to the correct target proteins . In hu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology"
] | 2016 | Role of Nfu1 and Bol3 in iron-sulfur cluster transfer to mitochondrial clients |
Food consumption is thought to induce sleepiness . However , little is known about how postprandial sleep is regulated . Here , we simultaneously measured sleep and food intake of individual flies and found a transient rise in sleep following meals . Depending on the amount consumed , the effect ranged from slightly ar... | Many of us have experienced feelings of sleepiness after a large meal . However , there is little scientific evidence that this “food coma” effect is real . If it is , it may vary between individuals , or depend on the type of food consumed . This variability makes it difficult to study the causes of post-meal sleepine... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Postprandial sleep mechanics in Drosophila |
Schistosomes infect more than 200 million of the world's poorest people . These parasites live in the vasculature , producing eggs that spur a variety of chronic , potentially life-threatening , pathologies exacerbated by the long lifespan of schistosomes , that can thrive in the host for decades . How schistosomes mai... | Schistosomes are parasitic worms that infect and cause chronic disease in hundreds of millions of people in the developing world . A major reason these parasites are so damaging is that they are capable of living and reproducing in the human bloodstream for decades . Previous research had shown that schistosomes have a... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
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] | [
"stem",
"cells",
"and",
"regenerative",
"medicine",
"short",
"report",
"microbiology",
"and",
"infectious",
"disease"
] | 2016 | Stem cell progeny contribute to the schistosome host-parasite interface |
The molecular pathways underlying tumor suppression are incompletely understood . Here , we identify cooperative non-cell-autonomous functions of a single gene that together provide a novel mechanism of tumor suppression in basal keratinocytes of zebrafish embryos . A loss-of-function mutation in atp1b1a , encoding the... | Cancer can develop when cells in the body gain mutations that allow them to grow and divide rapidly . Some of these mutations may affect the activity of genes that usually act to prevent cancer from developing . Several such “tumor suppressor” genes have been identified , but it is likely that many remain undiscovered ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cancer",
"biology"
] | 2016 | Tumor suppression in basal keratinocytes via dual non-cell-autonomous functions of a Na,K-ATPase beta subunit |
The diaphragm muscle is essential for breathing in mammals . Its asymmetric elevation during contraction correlates with morphological features suggestive of inherent left–right ( L/R ) asymmetry . Whether this asymmetry is due to L versus R differences in the muscle or in the phrenic nerve activity is unknown . Here ,... | The diaphragm is a dome-shaped muscle that forms the floor of the rib cage , separating the lungs from the abdomen . As we breathe in , the diaphragm contracts . This causes the chest cavity to expand , drawing air into the lungs . A pair of nerves called the phrenic nerves carry signals from the spinal cord to the dia... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2017 | Genetic specification of left–right asymmetry in the diaphragm muscles and their motor innervation |
Gastrulation constitutes a fundamental yet diverse morphogenetic process of metazoan development . Modes of gastrulation range from stochastic translocation of individual cells to coordinated infolding of an epithelial sheet . How such morphogenetic differences are genetically encoded and whether they have provided spe... | In animals , gastrulation is a period of time in early development during which a sphere of cells is reorganized into an embryo with cells arranged into three distinct layers ( called germ layers ) . The process has changed substantially during the course of evolution and thus provides a great experimental system to in... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology"
] | 2016 | Folded gastrulation and T48 drive the evolution of coordinated mesoderm internalization in flies |
Notch signaling controls a wide range of cell fate decisions during development and disease via synergistic interactions with other signaling pathways . Here , through a genome-wide genetic screen in Drosophila , we uncover a highly complex Notch-dependent genetic circuitry that profoundly affects proliferation and con... | The cells within animals are organized into tissues and organs that perform particular roles . To develop and maintain these structures , the ability of individual cells to divide and grow is strictly controlled by the activities of many proteins , including one called Notch . This protein is found in all multicellular... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2015 | The Notch-mediated hyperplasia circuitry in Drosophila reveals a Src-JNK signaling axis |
Mutualistic interactions between free-living algae and fungi are widespread in nature and are hypothesized to have facilitated the evolution of land plants and lichens . In all known algal-fungal mutualisms , including lichens , algal cells remain external to fungal cells . Here , we report on an algal–fungal interacti... | Yeast , molds and other fungi are found in most environments across the world . Many of the fungi that live on land today form relationships called symbioses with other microbes . Some of these relationships , like those formed with green algae , are beneficial and involve the exchange carbon , nitrogen and other impor... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology"
] | 2019 | Algal-fungal symbiosis leads to photosynthetic mycelium |
Impaired angiogenesis is a hallmark of metabolically dysfunctional adipose tissue in obesity . However , the underlying mechanisms restricting angiogenesis within this context remain ill-defined . Here , we demonstrate that induced endothelial-specific depletion of the transcription factor Forkhead Box O1 ( FoxO1 ) in ... | In the body , thread-like blood vessels called capillaries weave their way through our tissues to deliver oxygen and nutrients to every cell . When a tissue becomes bigger , existing vessels remodel to create new capillaries that can reach far away cells . However , in obesity , this process does not happen the way it ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2018 | Endothelial-specific FoxO1 depletion prevents obesity-related disorders by increasing vascular metabolism and growth |
How the human brain controls hand movements to carry out different tasks is still debated . The concept of synergy has been proposed to indicate functional modules that may simplify the control of hand postures by simultaneously recruiting sets of muscles and joints . However , whether and to what extent synergic hand ... | The human hand can perform an enormous range of movements with great dexterity . Some common everyday actions , such as grasping a coffee cup , involve the coordinated movement of all four fingers and thumb . Others , such as typing , rely on the ability of individual fingers to move relatively independently of one ano... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | A synergy-based hand control is encoded in human motor cortical areas |
Death domains ( DDs ) mediate assembly of oligomeric complexes for activation of downstream signaling pathways through incompletely understood mechanisms . Here we report structures of complexes formed by the DD of p75 neurotrophin receptor ( p75NTR ) with RhoGDI , for activation of the RhoA pathway , with caspase recr... | Cells have proteins called receptors on their surface that can bind to specific molecules on the outside of the cell . Typically , this binding activates the receptor and the activated receptor then triggers some biochemical changes inside the cell . For many receptors , the portion of the receptor inside the cell is e... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2015 | Structural basis of death domain signaling in the p75 neurotrophin receptor |
Genetic and molecular approaches have been critical for elucidating the mechanism of the mammalian circadian clock . Here , we demonstrate that the ClockΔ19 mutant behavioral phenotype is significantly modified by mouse strain genetic background . We map a suppressor of the ClockΔ19 mutation to a ∼900 kb interval on mo... | Circadian rhythms are biochemical , physiological and behavioral processes that follow a 24-hr cycle , responding primarily to the periods of light and dark , and they have been observed in bacteria , fungi , plants and animals . The circadian clock that drives these rhythms—which dictate our sleep patterns and other p... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience",
"genetics",
"and",
"genomics"
] | 2013 | Usf1, a suppressor of the circadian Clock mutant, reveals the nature of the DNA-binding of the CLOCK:BMAL1 complex in mice |
Many intergenic long noncoding RNA ( lncRNA ) loci regulate the expression of adjacent protein coding genes . Less clear is whether intergenic lncRNAs commonly regulate transcription by modulating chromatin at genomically distant loci . Here , we report both genomically local and distal RNA-dependent roles of Dali , a ... | Traditionally genes are considered to contain all the instructions necessary to build proteins . For these instructions to be followed they need to be ‘transcribed’ into molecules called messenger RNA , which are then ‘translated’ to form the protein . Messenger RNAs are not the only type of RNA molecule made in a cell... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"biochemistry",
"and",
"chemical",
"biology"
] | 2014 | The long non-coding RNA Dali is an epigenetic regulator of neural differentiation |
The mechanisms through which cancer cells lock in altered transcriptional programs in support of metastasis remain largely unknown . Through integrative analysis of clinical breast cancer gene expression datasets , cell line models of breast cancer progression , and mutation data from cancer genome resequencing studies... | Tumors form when mistakes in the genes of a single cell allow it to multiply uncontrollably . Sometimes further mutations in genes allow the cancerous cells to escape from the tumor , enter the bloodstream and start a second cancer elsewhere in the body . However , many of the genetic changes behind this process , whic... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"cancer",
"biology"
] | 2014 | Loss of the multifunctional RNA-binding protein RBM47 as a source of selectable metastatic traits in breast cancer |
Aneuploidy causes birth defects and miscarriages , occurs in nearly all cancers and is a hallmark of aging . Individual aneuploid cells can be eliminated from developing tissues by unknown mechanisms . Cells with ribosomal protein ( Rp ) gene mutations are also eliminated , by cell competition with normal cells . Becau... | Aneuploid cells emerge when cellular division goes awry and a cell ends up with the wrong number of chromosomes , the tiny genetic structures carrying the instructions that control life’s processes . Aneuploidy can lead to fatal conditions during development , and to cancer in an adult organism . A safety mechanism may... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"genetics",
"and",
"genomics"
] | 2021 | Cell competition removes segmental aneuploid cells from Drosophila imaginal disc-derived tissues based on ribosomal protein gene dose |
Nervous system function requires intracellular transport of channels , receptors , mRNAs , and other cargo throughout complex neuronal morphologies . Local signals such as synaptic input can regulate cargo trafficking , motivating the leading conceptual model of neuron-wide transport , sometimes called the ‘sushi-belt ... | Neurons are the workhorses of the nervous system , forming intricate networks to store , process and exchange information . They often connect to many thousands of other cells via intricate branched structures called neurites . This gives neurons their complex tree-like shape , which distinguishes them from many other ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology",
"neuroscience"
] | 2016 | Dendritic trafficking faces physiologically critical speed-precision tradeoffs |
During development , biomechanical forces contour the body and provide shape to internal organs . Using genetic and molecular approaches in combination with a FRET-based tension sensor , we characterized a pulling force exerted by the elongating pharynx ( foregut ) on the anterior epidermis during C . elegans embryogen... | For an animal embryo to develop , its cells must organize themselves into tissues and organs . For example , skin and the lining of internal organs—such as the lungs and gut—are made from cells called epithelial cells , which are tightly linked to form flat sheets . In a microscopic worm called Caenorhabditis elegans ,... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2015 | FBN-1, a fibrillin-related protein, is required for resistance of the epidermis to mechanical deformation during C. elegans embryogenesis |
Asymmetric disassembly of the synaptonemal complex ( SC ) is crucial for proper meiotic chromosome segregation . However , the signaling mechanisms that directly regulate this process are poorly understood . Here we show that the mammalian Rho GEF homolog , ECT-2 , functions through the conserved RAS/ERK MAP kinase sig... | Most plants and animals , including humans , have cells that contain two copies of every chromosome , with one set inherited from each parent . However , reproductive cells ( such as eggs and sperm ) contain just one copy of every chromosome so that when they fuse together at fertilization , the resulting cell will hav... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"cell",
"biology"
] | 2016 | The MAP kinase pathway coordinates crossover designation with disassembly of synaptonemal complex proteins during meiosis |
The segregation of eukaryotic chromosomes during mitosis requires their extensive folding into units of manageable size for the mitotic spindle . Here , we report on how phosphorylation at serine 10 of histone H3 ( H3 S10 ) contributes to this process . Using a fluorescence-based assay to study local compaction of the ... | DNA in humans , yeast and other eukaryotic organisms is packaged in structures called chromosomes . When a cell divides these chromosomes are copied and then the matching pairs are separated so that each daughter cell has a full set of its genome . To enable these events to take place , the DNA must become more tightly... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2015 | Axial contraction and short-range compaction of chromatin synergistically promote mitotic chromosome condensation |
Patterning is a critical step during organogenesis and is closely associated with the physiological function of organs . Tooth root shapes are finely tuned to provide precise occlusal support to facilitate the function of each tooth type . However , the mechanism regulating tooth root patterning and development is larg... | Different teeth have different numbers of roots . Incisors and canines each have one , and molars have two or three . Roots anchor the teeth to the jawbone , and provide a route for blood and nerves to reach the tooth . Getting the shape and number of the roots right during development is important to make sure that ea... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology"
] | 2019 | Antagonistic interaction between Ezh2 and Arid1a coordinates root patterning and development via Cdkn2a in mouse molars |
Rod and cone photoreceptors are highly similar in many respects but they have important functional and molecular differences . Here , we investigate genome-wide patterns of DNA methylation and chromatin accessibility in mouse rods and cones and correlate differences in these features with gene expression , histone mark... | Vision in humans is made possible by a light-sensing sheet of cells at the back of the eye called the retina . The surface of the retina is populated by specialized sensory cells , known as rods and cones . The rod cells detect very dim light , while the cones are less sensitive to light but are used to detect color . ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience",
"tools",
"and",
"resources",
"genetics",
"and",
"genomics"
] | 2016 | Epigenomic landscapes of retinal rods and cones |
How the immune system affects tissue regeneration is not well understood . In this study , we used an emerging mammalian model of epimorphic regeneration , the African spiny mouse , to examine cell-based inflammation and tested the hypothesis that macrophages are necessary for regeneration . By directly comparing infla... | The cells of the immune system are essential to defend an organism from disease . In addition , some of them are also thought to play an important role in helping injured tissues heal or even regrow . For example , when an animal is injured , immune cells such as macrophages rush to the wounded site to clear debris and... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2017 | Macrophages are necessary for epimorphic regeneration in African spiny mice |
The chloroplast proteome contains thousands of different proteins that are encoded by the nuclear genome . These proteins are imported into the chloroplast via the action of the TOC translocase and associated downstream systems . Our recent work has revealed that the stability of the TOC complex is dynamically regulate... | All green plants grow by converting light energy into chemical energy . They do this using a process called photosynthesis , which happens inside compartments in plant cells called chloroplasts . Chloroplasts use thousands of different proteins to make chemical energy . Some of these proteins allow the chloroplasts to ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology",
"cell",
"biology"
] | 2021 | Crosstalk between the chloroplast protein import and SUMO systems revealed through genetic and molecular investigation in Arabidopsis |
Cortical neurons integrate thousands of synaptic inputs in their dendrites in highly nonlinear ways . It is unknown how these dendritic nonlinearities in individual cells contribute to computations at the level of neural circuits . Here , we show that dendritic nonlinearities are critical for the efficient integration ... | Imagine that you are in the habit of checking three different weather forecasts each day , and then one day in early September the first forecast suddenly predicts snow . If you live in an area where it doesn’t normally snow in September , your initial reaction is likely to be surprise . However , you will not be quite... | [
"Abstract",
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"Materials",
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] | [
"neuroscience"
] | 2015 | Dendritic nonlinearities are tuned for efficient spike-based computations in cortical circuits |
Neuronal ELAV-like ( nELAVL ) RNA binding proteins have been linked to numerous neurological disorders . We performed crosslinking-immunoprecipitation and RNAseq on human brain , and identified nELAVL binding sites on 8681 transcripts . Using knockout mice and RNAi in human neuroblastoma cells , we showed that nELAVL i... | When a gene is active , its DNA is copied into a molecule of RNA . This molecule then undergoes a process called splicing which removes certain segments , and the resulting ‘messenger RNA’ molecule is then translated into protein . Many messenger RNAs go through alternative splicing , whereby different segments can be ... | [
"Abstract",
"Introduction",
"Results",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"neuroscience"
] | 2016 | Regulatory consequences of neuronal ELAV-like protein binding to coding and non-coding RNAs in human brain |
Many aspects of the brain’s design can be understood as the result of evolutionary drive toward metabolic efficiency . In addition to the energetic costs of neural computation and transmission , experimental evidence indicates that synaptic plasticity is metabolically demanding as well . As synaptic plasticity is cruci... | The brain expends a lot of energy . While the organ accounts for only about 2% of a person’s bodyweight , it is responsible for about 20% of our energy use at rest . Neurons use some of this energy to communicate with each other and to process information , but much of the energy is likely used to support learning . A ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2020 | Energy efficient synaptic plasticity |
Understanding changes in infectiousness during SARS-COV-2 infections is critical to assess the effectiveness of public health measures such as contact tracing . Here , we develop a novel mechanistic approach to infer the infectiousness profile of SARS-COV-2-infected individuals using data from known infector–infectee p... | The risk of a person with COVID-19 spreading the SARS-CoV-2 virus that causes it to others varies over the course of their infection . Transmission depends both on how much virus is in the infected person’s airway and their behaviors , such as whether they wear a mask and how many people they have contact with . Learni... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"epidemiology",
"and",
"global",
"health"
] | 2021 | High infectiousness immediately before COVID-19 symptom onset highlights the importance of continued contact tracing |
Hypoxia is a common challenge faced by bacteria during associations with hosts due in part to the formation of densely packed communities ( biofilms ) . cbb3-type cytochrome c oxidases , which catalyze the terminal step in respiration and have a high affinity for oxygen , have been linked to bacterial pathogenesis . Th... | Bacteria often form communities called biofilms to make them stronger and more ‘invincible’ . However , when these communities become too crowded , oxygen levels can drop , which makes it harder for them to survive . Some types of bacteria , such as Pseudomonas aeruginosa , have found different ways to cope with lower ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease"
] | 2017 | An orphan cbb3-type cytochrome oxidase subunit supports Pseudomonas aeruginosa biofilm growth and virulence |
Many pathogens possess the capacity for sex through outcrossing , despite being able to reproduce also asexually and/or via selfing . Given that sex is assumed to come at a cost , these mixed reproductive strategies typical of pathogens have remained puzzling . While the ecological and evolutionary benefits of outcross... | The existence of sex – broadly defined as the coming together of genes from different individuals – is one of the big evolutionary puzzles . Reproduction allows an organism to pass on its genes to future generations . However , while asexual and self-fertilizing individuals transmit all of their genes to their offsprin... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology",
"evolutionary",
"biology"
] | 2019 | Variable opportunities for outcrossing result in hotspots of novel genetic variation in a pathogen metapopulation |
We report quantitative label-free imaging with phase and polarization ( QLIPP ) for simultaneous measurement of density , anisotropy , and orientation of structures in unlabeled live cells and tissue slices . We combine QLIPP with deep neural networks to predict fluorescence images of diverse cell and tissue structures... | Microscopy is central to biological research and has enabled scientist to study the structure and dynamics of cells and their components within . Often , fluorescent dyes or trackers are used that can be detected under the microscope . However , this procedure can sometimes interfere with the biological processes being... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"physics",
"of",
"living",
"systems",
"tools",
"and",
"resources",
"neuroscience"
] | 2020 | Revealing architectural order with quantitative label-free imaging and deep learning |
Cancer-associated fibroblasts ( CAFs ) are a major cellular component of tumor microenvironment in most solid cancers . Altered cellular metabolism is a hallmark of cancer , and much of the published literature has focused on neoplastic cell-autonomous processes for these adaptations . We demonstrate that exosomes secr... | Cancer cells behave differently from healthy cells in many ways . Healthy cells rely on structures called mitochondria to provide them with energy via a process that requires oxygen . However cancer cells don’t rely on this process , and instead release energy by breaking down sugars outside of the mitochondria . This ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"cancer",
"biology"
] | 2016 | Tumor microenvironment derived exosomes pleiotropically modulate cancer cell metabolism |
It has been recognized for nearly a century that diet modulates aging . Despite early experiments suggesting that reduced caloric intake augmented lifespan , accumulating evidence indicates that other characteristics of the diet may be equally or more influential in modulating aging . We demonstrate that behavior , met... | The foods we eat can affect our lifespan , but it is also possible that thinking about food may have effects on our health . Choosing what to eat is one of the main ways we think about food , and most animals , including the fruit fly Drosophila melanogaster , choose their foods . The effects of these choices can affec... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"genetics",
"and",
"genomics"
] | 2021 | Drosophila serotonin 2A receptor signaling coordinates central metabolic processes to modulate aging in response to nutrient choice |
We wish to identify determinants of endothelial lineage . Murine embryonic stem cells ( mESC ) were fused with human endothelial cells in stable , non-dividing , heterokaryons . Using RNA-seq , it is possible to discriminate between human and mouse transcripts in these chimeric heterokaryons . We observed a temporal pa... | Endothelial cells form the inner surface of blood vessels , acting like a non-stick coating . In addition to making substances that keep blood from sticking to the vessel wall , endothelial cells generate compounds that relax the vessel , and prevent it from thickening . Endothelial cells also form capillaries , the sm... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2017 | Discovery of novel determinants of endothelial lineage using chimeric heterokaryons |
The capsids of non-enveloped viruses are highly multimeric and multifunctional protein assemblies that play key roles in viral biology and pathogenesis . Despite their importance , a comprehensive understanding of how mutations affect viral fitness across different structural and functional attributes of the capsid is ... | A virus is made up of genetic material that is encased with a protective protein coat called the capsid . The capsid also helps the virus to infect host cells by binding to the host receptor proteins and releasing its genetic material . Inside the cell , the virus hitchhikes the infected cell’s machinery to grow or rep... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"microbiology",
"and",
"infectious",
"disease"
] | 2021 | Globally defining the effects of mutations in a picornavirus capsid |
Stress often affects eating behaviors , increasing caloric intake in some individuals and decreasing it in others . The determinants of feeding responses to stress are unknown , in part because this issue is rarely studied in rodents . We focused our efforts on the novelty-suppressed feeding ( NSF ) assay , which uses ... | In times of heightened anxiety – say , during a global pandemic – many of us will reach for donuts or a particularly appetizing pizza for comfort . Others , however , will tend to shun food . What underlies these differences , and , in fact , the neural and hormonal pathways at play during stress eating ( when people e... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"tools",
"and",
"resources",
"neuroscience"
] | 2022 | Assessing the effects of stress on feeding behaviors in laboratory mice |
Iron storage proteins are essential for cellular iron homeostasis and redox balance . Ferritin proteins are the major storage units for bioavailable forms of iron . Some organisms lack ferritins , and it is not known how they store iron . Encapsulins , a class of protein-based organelles , have recently been implicated... | People often think of the cell as the basic unit of life . Despite this , individual cells are also subdivided into many compartments , called ‘organelles’ because they act like the internal organs of the cell . For example , organelles can break down nutrients , store information in the form of DNA , or help remove wa... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2019 | Large protein organelles form a new iron sequestration system with high storage capacity |
Shorter childhood telomere length ( TL ) and more rapid TL attrition are widely regarded as manifestations of stress . However , the potential effects of health interventions on child TL are unknown . We hypothesized that a water , sanitation , handwashing ( WSH ) , and nutritional intervention would slow TL attrition ... | Stress negatively affects health by causing changes in cells . As a result , excess stress may predispose people to fall ill more often or age faster . It is difficult to measure stress . Some studies suggest that measuring the ends of chromosomes , known as telomeres , may be one way to measure stress . Like the plast... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"epidemiology",
"and",
"global",
"health",
"medicine"
] | 2017 | Effects of water, sanitation, handwashing, and nutritional interventions on telomere length among children in a cluster-randomized controlled trial in rural Bangladesh |
Positive-sense RNA viruses hijack intracellular membranes that provide niches for viral RNA synthesis and a platform for interactions with host proteins . However , little is known about host factors at the interface between replicase complexes and the host cytoplasm . We engineered a biotin ligase into a coronaviral r... | Coronaviruses can infect the nose and throat and are a main cause of the common cold . Infections are usually mild and short-lived , but sometimes they can turn nasty . In 2002 and 2012 , two dangerous new coronaviruses emerged and caused diseases known as SARS and MERS . These viruses caused much more serious symptoms... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease"
] | 2019 | Determination of host proteins composing the microenvironment of coronavirus replicase complexes by proximity-labeling |
Command-like descending neurons can induce many behaviors , such as backward locomotion , escape , feeding , courtship , egg-laying , or grooming ( we define ‘command-like neuron’ as a neuron whose activation elicits or ‘commands’ a specific behavior ) . In most animals , it remains unknown how neural circuits switch b... | When we choose to make one kind of movement , it often prevents us making another . We cannot move forward and backward at the same time , for example , and a horse cannot simultaneously gallop and walk . These ‘antagonistic’ behaviors often use the same group of muscles , but the muscles contract in a different order ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2018 | MDN brain descending neurons coordinately activate backward and inhibit forward locomotion |
We subjectively perceive our visual field with high fidelity , yet peripheral distortions can go unnoticed and peripheral objects can be difficult to identify ( crowding ) . Prior work showed that humans could not discriminate images synthesised to match the responses of a mid-level ventral visual stream model when inf... | As you read this digest , your eyes move to follow the lines of text . But now try to hold your eyes in one position , while reading the text on either side and below: it soon becomes clear that peripheral vision is not as good as we tend to assume . It is not possible to read text far away from the center of your line... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"neuroscience"
] | 2019 | Image content is more important than Bouma’s Law for scene metamers |
Decidual remodelling of midluteal endometrium leads to a short implantation window after which the uterine mucosa either breaks down or is transformed into a robust matrix that accommodates the placenta throughout pregnancy . To gain insights into the underlying mechanisms , we established and characterized endometrial... | At the beginning of a human pregnancy , the embryo implants into the uterus lining , known as the endometrium . At this point , the endometrium transforms into a new tissue that helps the placenta to form . Problems in this transformation process are linked to pregnancy disorders , many of which can lead to implantatio... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2021 | Modelling the impact of decidual senescence on embryo implantation in human endometrial assembloids |
As the general population ages , more people are affected by eye diseases , such as retinopathies . It is therefore critical to improve imaging of eye disease mouse models . Here , we demonstrate that 1 ) rapid , quantitative 3D and 4D ( time lapse ) imaging of cellular and subcellular processes in the mouse eye is fea... | Eye diseases affect millions of people worldwide and can have devasting effects on people’s lives . To find new treatments , scientists need to understand more about how these diseases arise and how they progress . This is challenging and progress has been held back by limitations in current techniques for looking at t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology",
"tools",
"and",
"resources"
] | 2020 | Mouse retinal cell behaviour in space and time using light sheet fluorescence microscopy |
The human gastrointestinal tract is immature at birth , yet must adapt to dramatic changes such as oral nutrition and microbial colonization . The confluence of these factors can lead to severe inflammatory disease in premature infants; however , investigating complex environment-host interactions is difficult due to l... | Human newborns are exposed to large numbers of bacteria at birth . They must transition from the protective , sterile environment of the womb into the bacteria-rich world . The gut , in particular , must adapt as bacteria colonize it . Many of the first bacteria found in the newborn gut form the basis of the bacterial ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"tools",
"and",
"resources",
"microbiology",
"and",
"infectious",
"disease"
] | 2017 | Bacterial colonization stimulates a complex physiological response in the immature human intestinal epithelium |
The design of synthetic optogenetic tools that allow precise spatiotemporal control of biological processes previously inaccessible to optogenetic control has developed rapidly over the last years . Rational design of such tools requires detailed knowledge of allosteric light signaling in natural photoreceptors . To un... | The ability to react to sunlight is important for the survival of a wide range of lifeforms . Many organisms , including humans , plants , bacteria and algae , sense light using specialized proteins called photoreceptors . These proteins are able to translate the information transported by light into various biological... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2016 | Blue light-induced LOV domain dimerization enhances the affinity of Aureochrome 1a for its target DNA sequence |
Transcriptional pausing underlies regulation of cellular RNA biogenesis . A consensus pause sequence that acts on RNA polymerases ( RNAPs ) from bacteria to mammals halts RNAP in an elemental paused state from which longer-lived pauses can arise . Although the structural foundations of pauses prolonged by backtracking ... | The information a cell needs to create a specific protein is encoded in a sequence of precisely organized DNA ‘letters’ . Unlocking these instructions requires an enzyme known as RNA polymerase ( RNAP for short ) , which reads the DNA segment and faithfully copies the information to form a strand of RNA . This molecule... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"biochemistry",
"and",
"chemical",
"biology"
] | 2019 | The elemental mechanism of transcriptional pausing |
The vertebrate eye originates from the eye field , a domain of cells specified by a small number of transcription factors . In this study , we show that Tcf7l1a is one such transcription factor that acts cell-autonomously to specify the eye field in zebrafish . Despite the much-reduced eye field in tcf7l1a mutants , th... | Left and right eyes develop independently , yet they consistently grow to roughly the same size in humans and other creatures . How they do this remains a mystery , though scientists have learned that both eyes originate from a single group of cells in the developing nervous system called the eye field . As development... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology"
] | 2019 | Compensatory growth renders Tcf7l1a dispensable for eye formation despite its requirement in eye field specification |
Virtually all mitochondrial matrix proteins and a considerable number of inner membrane proteins carry a positively charged , N-terminal presequence and are imported by the TIM23 complex ( presequence translocase ) located in the inner mitochondrial membrane . The voltage-regulated Tim23 channel constitutes the actual ... | The cells of animals , plants and other eukaryotic organisms contain compartments known as organelles that play many different roles . For example , compartments called mitochondria are responsible for supplying the chemical energy cells need to survive and grow . Two membranes surround each mitochondrion and energy is... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2017 | Cation selectivity of the presequence translocase channel Tim23 is crucial for efficient protein import |
Exercise-induced cognitive improvements have traditionally been observed following aerobic exercise interventions; that is , sustained sessions of moderate intensity . Here , we tested the effect of a 6 week high-intensity training ( HIT ) regimen on measures of cognitive control and working memory in a multicenter , r... | Exercise has beneficial effects on the body and brain . People who perform well on tests of cardiovascular fitness also do well on tests of learning , memory and other cognitive skills . So far , studies have suggested that moderate intensity aerobic exercise that lasts for 30 to 40 minutes produces the greatest improv... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"medicine",
"neuroscience"
] | 2017 | High-intensity training enhances executive function in children in a randomized, placebo-controlled trial |
The time-dependent rate I ( t ) of origin firing per length of unreplicated DNA presents a universal bell shape in eukaryotes that has been interpreted as the result of a complex time-evolving interaction between origins and limiting firing factors . Here , we show that a normal diffusion of replication fork components... | Before a cell can divide , it must duplicate its DNA . In eukaryotes – organisms such as animals and fungi , which store their DNA in the cell’s nucleus – DNA replication starts at specific sites in the genome called replication origins . At each origin sits a protein complex that will activate when it randomly capture... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"short",
"report",
"computational",
"and",
"systems",
"biology"
] | 2018 | The eukaryotic bell-shaped temporal rate of DNA replication origin firing emanates from a balance between origin activation and passivation |
Dysfunction of the noradrenergic ( NE ) neurons is implicated in the pathogenesis of bipolar disorder ( BPD ) . ErbB4 is highly expressed in NE neurons , and its genetic variation has been linked to BPD; however , how ErbB4 regulates NE neuronal function and contributes to BPD pathogenesis is unclear . Here we find tha... | Bipolar disorder is a mental illness that affects roughly 1 in 100 people worldwide . It features periods of depression interspersed with episodes of mania – a state of delusion , heightened excitation and increased activity . Evidence suggests that changes in a brain region called the locus coeruleus contribute to bip... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2018 | ErbB4 deletion in noradrenergic neurons in the locus coeruleus induces mania-like behavior via elevated catecholamines |
Infection by Toxoplasma gondii leads to massive changes to the host cell . Here , we identify a novel host cell effector export pathway that requires the Golgi-resident aspartyl protease 5 ( ASP5 ) . We demonstrate that ASP5 cleaves a highly constrained amino acid motif that has similarity to the PEXEL-motif of Plasmod... | Toxoplasma gondii is a parasite that is thought to infect over two billion people worldwide . Often these infections cause no noticeable symptoms , but can cause serious illness in people with weakened immune systems . Toxoplasma parasites must enter human cells in order to survive . To dramatically increase their chan... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease"
] | 2015 | An aspartyl protease defines a novel pathway for export of Toxoplasma proteins into the host cell |
Recovery from serious neurological injury requires substantial rewiring of neural circuits . Precisely-timed electrical stimulation could be used to restore corrective feedback mechanisms and promote adaptive plasticity after neurological insult , such as spinal cord injury ( SCI ) or stroke . This study provides the f... | The spine houses a network of neurons that relays electric signals from the brain cells to the muscles . When the spine is injured , some of these neurons may be damaged and their connections to the muscles broken . As a result , the muscles they command become weak , and movement is impaired . It is possible to streng... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2018 | Closed-loop neuromodulation restores network connectivity and motor control after spinal cord injury |
Autoinducers are small signaling molecules that mediate intercellular communication in microbial populations and trigger coordinated gene expression via ‘quorum sensing’ . Elucidating the mechanisms that control autoinducer production is , thus , pertinent to understanding collective microbial behavior , such as virule... | Bacteria and other microbes can communicate with each other using chemical languages . They release small signaling molecules called autoinducers into their surroundings and sense the levels of the autoinducers in the environment . The response to these autoinducers – known as quorum sensing – can regulate how whole co... | [
"Abstract",
"Introduction",
"Set-up",
"of",
"the",
"quorum-sensing",
"model",
"Results",
"of",
"numerical",
"simulations",
"Results",
"of",
"mathematical",
"analysis",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology"
] | 2017 | Ecological feedback in quorum-sensing microbial populations can induce heterogeneous production of autoinducers |
Cell junctions are scaffolds that integrate mechanical and chemical signaling . We previously showed that a desmosomal cadherin promotes keratinocyte differentiation in an adhesion-independent manner by dampening Epidermal Growth Factor Receptor ( EGFR ) activity . Here we identify a potential mechanism by which desmos... | The outer layer of skin – the epidermis – forms a critical barrier against a range of stresses from the environment . The epidermis itself consists of multiple layers of cells that are constantly being renewed . New cells are made in the deepest layer and move upwards until they eventually reach the skin’s surface . Du... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2017 | Epidermal Growth Factor Receptor neddylation is regulated by a desmosomal-COP9 (Constitutive Photomorphogenesis 9) signalosome complex |
Humans and other animals routinely identify and attend to sensory stimuli so as to rapidly acquire rewards or avoid aversive experiences . Emotional arousal , a process mediated by the amygdala , can enhance attention to stimuli in a non-spatial manner . However , amygdala neural activity was recently shown to encode s... | In our everyday lives , we are surrounded by stimuli that compete for our attention . However , the brain pays more attention to some stimuli—such as those that signal rewards or warn of potential threats—than to others . These stimuli receive extra attention because they activate a structure deep within the brain call... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2014 | Amygdala neural activity reflects spatial attention towards stimuli promising reward or threatening punishment |
Alternative splicing ( AS ) creates proteomic diversity from a limited size genome by generating numerous transcripts from a single protein-coding gene . Tissue-specific regulators of AS are essential components of the gene regulatory network , required for normal cellular function , tissue patterning , and embryonic d... | Abnormalities affecting the head and face – such as a cleft lip or palate – are among the most common of all birth defects . These tissues normally develop from cells in the embryo known as the neural crest cells , and specifically a subset of these cells called the cranial neural crest cells . Most cases of cleft lip ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology"
] | 2019 | Neural crest-specific deletion of Rbfox2 in mice leads to craniofacial abnormalities including cleft palate |
Using several longitudinal datasets describing putative factors affecting influenza incidence and clinical data on the disease and health status of over 150 million human subjects observed over a decade , we investigated the source and the mechanistic triggers of influenza epidemics . We conclude that the initiation of... | Influenza – or ‘the flu’ – is a contagious disease which sweeps across the globe like clockwork , claiming tens of thousands of lives . This is known as ‘seasonal flu’ . Many scientists have tried to identify the factors that spark these yearly outbreaks . Some past studies have found that seasonal flu occurs when air ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"epidemiology",
"and",
"global",
"health",
"medicine"
] | 2018 | Conjunction of factors triggering waves of seasonal influenza |
Passive mechanisms of mate guarding are used by males to promote sperm precedence with little cost , but these tactics can be disadvantageous for their mates and other males . Mated females of the plant bug Lygus hesperus are rendered temporarily unattractive by seminal fluids containing myristyl acetate and geranylger... | In many animal species , males guard females to prevent rivals from mating so that they can be sure that they fathered the female’s offspring . Some guarding methods work even when the male is not present . For example , the semen of some male insects contains chemicals known as antiaphrodisiacs that repel other males ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology"
] | 2017 | An insect anti-antiaphrodisiac |
Axon injury triggers dramatic changes in gene expression . While transcriptional regulation of injury-induced gene expression is widely studied , less is known about the roles of RNA binding proteins ( RBPs ) in post-transcriptional regulation during axon regeneration . In C . elegans the CELF ( CUGBP and Etr-3 Like Fa... | Nerve cells or neurons carry information around the body along projections known as axons . An injury or trauma , such as a stroke , can damage the axons and lead to permanent disability because the damaged axons fail to regenerate over long distances . Axon damage triggers large changes in the activity of many genes t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | CELF RNA binding proteins promote axon regeneration in C. elegans and mammals through alternative splicing of Syntaxins |
Metabolic pathways in eubacteria and archaea often are encoded by operons and/or gene clusters ( genome neighborhoods ) that provide important clues for assignment of both enzyme functions and metabolic pathways . We describe a bioinformatic approach ( genome neighborhood network; GNN ) that enables large scale predict... | DNA molecules are polymers in which four nucleotides—guanine , adenine , thymine , and cytosine—are arranged along a sugar backbone . The sequence of these four nucleotides along the DNA strand determines the genetic code of the organism , and can be deciphered using various genome sequencing techniques . Microbial gen... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology"
] | 2014 | Prediction and characterization of enzymatic activities guided by sequence similarity and genome neighborhood networks |
In theory , sensory perception should be more accurate when more neurons contribute to the representation of a stimulus . However , psychophysical experiments that use larger stimuli to activate larger pools of neurons sometimes report impoverished perceptual performance . To determine the neural mechanisms underlying ... | People usually find it easier to see things when they are big and bright , but there are occasionally exceptions . One example concerns moving objects: when they are small , we can identify their direction of motion easily , but this becomes much more difficult for larger objects . This decreased perceptual sensitivity... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | A neural basis for the spatial suppression of visual motion perception |
The adult frog retina retains a reservoir of active neural stem cells that contribute to continuous eye growth throughout life . We found that Yap , a downstream effector of the Hippo pathway , is specifically expressed in these stem cells . Yap knock-down leads to an accelerated S-phase and an abnormal progression of ... | In animals , stem cells divide to produce the new cells needed to grow and renew tissues and organs . Understanding the biology of these cells is of the utmost importance for developing new treatments for a wide range of human diseases , including neurodegenerative diseases and cancer . Before a stem cell divides , it ... | [
"Abstract",
"Introduction",
"Results",
"Discussion"
] | [
"developmental",
"biology"
] | 2015 | YAP controls retinal stem cell DNA replication timing and genomic stability |
Desmoplasia , a fibrotic mass including cancer-associated fibroblasts ( CAFs ) and self-sustaining extracellular matrix ( D-ECM ) , is a puzzling feature of pancreatic ductal adenocarcinoma ( PDACs ) . Conflicting studies have identified tumor-restricting and tumor-promoting roles of PDAC-associated desmoplasia , sugge... | Tumors are not entirely made out of cancerous cells . They contain many other components – referred to as tumor stroma – that may either encourage or hinder the tumor’s growth . Tumor stroma includes non-cancerous cells and a framework of fibrous sugary proteins , called the extracellular matrix , which surround and si... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology"
] | 2017 | Matrix-regulated integrin αvβ5 maintains α5β1-dependent desmoplastic traits prognostic of neoplastic recurrence |
Glycogen synthase kinase-3 ( GSK-3 ) is a key regulator of many cellular signaling pathways . Unlike most kinases , GSK-3 is controlled by inhibition rather than by specific activation . In the insulin and several other signaling pathways , phosphorylation of a serine present in a conserved sequence near the amino term... | Cells need to be able to respond to changes in the body , such as changes in hormone levels or the arrival of a pathogen such as a virus . Proteins acting in signaling pathways—where one protein switches ‘on’ or ‘off’ the next protein in the pathway—allow the detection of different changes or signals to be translated i... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2014 | Structural basis of GSK-3 inhibition by N-terminal phosphorylation and by the Wnt receptor LRP6 |
COVID-19 patients can present with pulmonary edema early in disease . We propose that this is due to a local vascular problem because of activation of bradykinin 1 receptor ( B1R ) and B2R on endothelial cells in the lungs . SARS-CoV-2 enters the cell via ACE2 that next to its role in RAAS is needed to inactivate des-A... | The COVID-19 pandemic represents an unprecedented threat to global health . Millions of cases have been confirmed around the world , and hundreds of thousands of people have lost their lives . Common symptoms include a fever and persistent cough and COVID-19 patients also often experience an excess of fluid in the lung... | [
"Abstract",
"Introduction",
"Clinical",
"observations",
"Bradykinin-induced",
"local",
"pulmonary",
"angioedema",
"Targeted",
"treatment",
"and",
"timing",
"of",
"interventions",
"Conclusions"
] | [
"short",
"report",
"medicine",
"immunology",
"and",
"inflammation"
] | 2020 | Kallikrein-kinin blockade in patients with COVID-19 to prevent acute respiratory distress syndrome |
Biomarkers of low-grade inflammation have been associated with susceptibility to a severe infectious disease course , even when measured prior to disease onset . We investigated whether metabolic biomarkers measured by nuclear magnetic resonance ( NMR ) spectroscopy could be associated with susceptibility to severe pne... | National policies for mitigating the COVID-19 pandemic include stricter measures for people considered to be at high risk of severe and potentially fatal cases of the disease . Although older age and pre-existing health conditions are strong risk factors , it is poorly understood why susceptibility varies so widely in ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"epidemiology",
"and",
"global",
"health",
"medicine"
] | 2021 | Metabolic biomarker profiling for identification of susceptibility to severe pneumonia and COVID-19 in the general population |
The fish-hunting marine cone snail Conus geographus uses a specialized venom insulin to induce hypoglycemic shock in its prey . We recently showed that this venom insulin , Con-Ins G1 , has unique characteristics relevant to the design of new insulin therapeutics . Here , we show that fish-hunting cone snails provide a... | Insulin is a hormone critical for maintaining healthy blood sugar levels in humans . When the insulin system becomes faulty , blood sugar levels become too high , which can lead to diabetes . At the moment , the only effective treatment for one of the major types of diabetes are daily insulin injections . However , des... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology"
] | 2019 | Fish-hunting cone snail venoms are a rich source of minimized ligands of the vertebrate insulin receptor |
Retinoic acid-inducible gene I ( RIG-I ) initiates a rapid innate immune response upon detection and binding to viral ribonucleic acid ( RNA ) . This signal activation occurs only when pathogenic RNA is identified , despite the ability of RIG-I to bind endogenous RNA while surveying the cytoplasm . Here we show that AT... | When a virus invades a cell , it commandeers the cell's replication machinery to make copies of the virus' genetic material . Some viruses , such as those that cause influenza or measles , store their genetic information in the form of ribonucleic acid ( RNA ) molecules . When a virus is first detected inside an animal... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"immunology",
"and",
"inflammation"
] | 2015 | Establishing the role of ATP for the function of the RIG-I innate immune sensor |
SOX2 positive pituitary stem cells ( PSCs ) are specified embryonically and persist throughout life , giving rise to all pituitary endocrine lineages . We have previously shown the activation of the STK/LATS/YAP/TAZ signalling cascade in the developing and postnatal mammalian pituitary . Here , we investigate the funct... | The pituitary is a gland inside the head that releases hormones that control major processes in the body including growth , fertility and stress . Diseases of the pituitary gland can prevent the body from producing the appropriate amounts of hormones , and also include tumours . A population of stem cells in the pituit... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"stem",
"cells",
"and",
"regenerative",
"medicine"
] | 2019 | Homeostatic and tumourigenic activity of SOX2+ pituitary stem cells is controlled by the LATS/YAP/TAZ cascade |
Clonally transmissible cancers are tumour lineages that are transmitted between individuals via the transfer of living cancer cells . In marine bivalves , leukaemia-like transmissible cancers , called hemic neoplasia ( HN ) , have demonstrated the ability to infect individuals from different species . We performed whol... | In humans and other animals , cancer cells divide excessively , forming tumours or flooding the blood , but they rarely spread to other individuals . However , some animals , including dogs , Tasmanian devils and bivalve molluscs like clams , cockles and mussels , can develop cancers that are transmitted from one indiv... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"ecology",
"short",
"report",
"cancer",
"biology"
] | 2022 | Mitochondrial genome sequencing of marine leukaemias reveals cancer contagion between clam species in the Seas of Southern Europe |
The DNA repair protein RAD52 is an emerging therapeutic target of high importance for BRCA-deficient tumors . Depletion of RAD52 is synthetically lethal with defects in tumor suppressors BRCA1 , BRCA2 and PALB2 . RAD52 also participates in the recovery of the stalled replication forks . Anticipating that ssDNA binding ... | Cells are constantly in danger of losing or scrambling critical genetic information because of DNA damage . To cope with this stress , cells have numerous DNA repair systems . One of these systems – homology-directed DNA repair – involves the proteins BRCA1 and BRCA2 , which are often missing or defective in breast and... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"biochemistry",
"and",
"chemical",
"biology"
] | 2016 | Small-molecule inhibitors identify the RAD52-ssDNA interaction as critical for recovery from replication stress and for survival of BRCA2 deficient cells |
The liver X receptors ( LXRs ) are transcriptional regulators of lipid homeostasis that also have potent anti-inflammatory effects . The molecular basis for their anti-inflammatory effects is incompletely understood , but has been proposed to involve the indirect tethering of LXRs to inflammatory gene promoters . Here ... | Inflammation is a normal part of the immune response to infection or tissue damage . However , increased inflammation has been linked to diseases such as obesity , diabetes and atherosclerosis ( in which the walls of the arteries become hardened ) . These same diseases have also been linked to problems with the product... | [
"Abstract",
"Introduction",
"Results",
"Discussion"
] | [
"chromosomes",
"and",
"gene",
"expression",
"cell",
"biology"
] | 2015 | LXRs link metabolism to inflammation through Abca1-dependent regulation of membrane composition and TLR signaling |
TMEM16A and TMEM16B are calcium-activated chloride channels ( CaCCs ) with important functions in mammalian physiology . Whether distant relatives of the vertebrate TMEM16 families also form CaCCs is an intriguing open question . Here we report that a TMEM16 family member from Drosophila melanogaster , Subdued ( CG1671... | Ions are at the root of most processes that occur in the body , so they must be able to move in and out of cells . However , because they have an electric charge , ions are not usually able to pass through the fatty membrane that encloses all cells . Instead , they must be imported or exported by a variety of dedicated... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2013 | Subdued, a TMEM16 family Ca2+-activated Cl− channel in Drosophila melanogaster with an unexpected role in host defense |
Neurons in higher cortical areas , such as the prefrontal cortex , are often tuned to a variety of sensory and motor variables , and are therefore said to display mixed selectivity . This complexity of single neuron responses can obscure what information these areas represent and how it is represented . Here we demonst... | Many neuroscience experiments today involve using electrodes to record from the brain of an animal , such as a mouse or a monkey , while the animal performs a task . The goal of such experiments is to understand how a particular brain region works . However , modern experimental techniques allow the activity of hundred... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Demixed principal component analysis of neural population data |
Heterochromatic domains are enriched with repressive histone marks , including histone H3 lysine 9 methylation , written by lysine methyltransferases ( KMTs ) . The pre-replication complex protein , origin recognition complex-associated ( ORCA/LRWD1 ) , preferentially localizes to heterochromatic regions in post-replic... | The genetic material inside cells is contained within molecules of DNA . In animals and other eukaryotes , the DNA is tightly wrapped around proteins called histones to form a compact structure known as chromatin . There are two forms of chromatin: loosely packed chromatin tends to contain genes that are highly active ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"cell",
"biology"
] | 2015 | The preRC protein ORCA organizes heterochromatin by assembling histone H3 lysine 9 methyltransferases on chromatin |
KCC2 is a neuron-specific K+-Cl– cotransporter essential for establishing the Cl- gradient required for hyperpolarizing inhibition in the central nervous system ( CNS ) . KCC2 is highly localized to excitatory synapses where it regulates spine morphogenesis and AMPA receptor confinement . Aberrant KCC2 function contrib... | Neurons in the brain talk to each other by releasing chemicals called neurotransmitters . These neurotransmitters can either increase ( 'excite' ) or decrease ( 'inhibit' ) the activity of other neurons . Inhibitory neurotransmission uses the chemical GABA as a neurotransmitter . When a neuron releases GABA it is like ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | Native KCC2 interactome reveals PACSIN1 as a critical regulator of synaptic inhibition |
Recent studies posit a role for non-coding RNAs in epithelial ovarian cancer ( EOC ) . Combining small RNA sequencing from 179 human serum samples with a neural network analysis produced a miRNA algorithm for diagnosis of EOC ( AUC 0 . 90; 95% CI: 0 . 81–0 . 99 ) . The model significantly outperformed CA125 and functio... | Ovarian cancer is a major cause of cancer death among women . A woman’s survival often hinges on doctors detecting the tumor before it has spread beyond the ovary . Unfortunately , most women with ovarian cancer are not diagnosed until they have symptoms – such as pelvic pain , bloating , swelling of the abdomen or app... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology"
] | 2017 | Diagnostic potential for a serum miRNA neural network for detection of ovarian cancer |
Mitochondria play important roles in cellular processes and disease , yet little is known about how the transcriptional regime of the mitochondrial genome varies across individuals and tissues . By analyzing >11 , 000 RNA-sequencing libraries across 36 tissue/cell types , we find considerable variation in mitochondrial... | Mitochondria are like the batteries of our cells; they perform the essential task of turning nutrients into chemical energy . A cell relies on its mitochondria for its survival , but they are not completely under the cell’s control . Mitochondria have their own DNA , separate from the cell’s DNA which is stored in the ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"genetics",
"and",
"genomics"
] | 2019 | Nuclear genetic regulation of the human mitochondrial transcriptome |
The six-subunit Origin Recognition Complex ( ORC ) is believed to be an essential eukaryotic ATPase that binds to origins of replication as a ring-shaped heterohexamer to load MCM2-7 and initiate DNA replication . We have discovered that human cell lines in culture proliferate with intact chromosomal origins of replica... | Most of the DNA in human cells is packaged into structures called chromosomes . Before a cell divides , the DNA in each chromosome is carefully copied . This process begins at multiple sites ( known as origins ) on each chromosome . A group of six proteins collectively known as the Origin Recognition Complex ( or ORC f... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"cell",
"biology"
] | 2016 | Two subunits of human ORC are dispensable for DNA replication and proliferation |
The poor efficacy of seasonal influenza virus vaccines is often attributed to pre-existing immunity interfering with the persistence and maturation of vaccine-induced B cell responses . We previously showed that a subset of vaccine-induced B cell lineages are recruited into germinal centers ( GCs ) following vaccinatio... | When the immune system encounters a disease-causing pathogen , it releases antibodies that can bind to specific regions of the bacterium or virus and help to clear the infection . These proteins are generated by B cells which , upon detecting the pathogen , can begin to mutate and alter the structure of the antibody th... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology",
"immunology",
"and",
"inflammation"
] | 2021 | Human B cell lineages associated with germinal centers following influenza vaccination are measurably evolving |
Alterations in global mRNA decay broadly impact multiple stages of gene expression , although signals that connect these processes are incompletely defined . Here , we used tandem mass tag labeling coupled with mass spectrometry to reveal that changing the mRNA decay landscape , as frequently occurs during viral infect... | The nucleus of a cell harbors DNA , which contains all information needed to build an organism . The instructions are stored as a genetic code that serves as a blueprint for making proteins – molecules that are important for almost every process in the body – and to assemble cells . But first , the code on the DNA need... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"microbiology",
"and",
"infectious",
"disease"
] | 2018 | Changes in mRNA abundance drive shuttling of RNA binding proteins, linking cytoplasmic RNA degradation to transcription |
The voltage-gated potassium channel KV7 . 1 and the auxiliary subunit KCNE1 together form the cardiac IKs channel , which is a proposed target for future anti-arrhythmic drugs . We previously showed that polyunsaturated fatty acids ( PUFAs ) activate KV7 . 1 via an electrostatic mechanism . The activating effect was ab... | The muscle cells in the heart must contract and relax in a coordinated way for the heart to pump blood efficiently around the body . Different ions flow in and out of these cells , which are known as cardiomyocytes , to control when they contract and relax . The ions enter and leave by passing through channel proteins ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2018 | KCNE1 tunes the sensitivity of KV7.1 to polyunsaturated fatty acids by moving turret residues close to the binding site |
HLA-restricted T cell responses can induce antitumor effects in cancer patients . Previous human T cell research has largely focused on the few HLA alleles prevalent in a subset of ethnic groups . Here , using a panel of newly developed peptide-exchangeable peptide/HLA multimers and artificial antigen-presenting cells ... | The immune system is the body’s way of defending itself , offering protection against diseases such as cancer . But to remove the cancer cells , the immune system must be able to identify them as different from the rest of the body . All cells break down proteins into shorter fragments , known as peptides , that are di... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"immunology",
"and",
"inflammation"
] | 2020 | Landscape mapping of shared antigenic epitopes and their cognate TCRs of tumor-infiltrating T lymphocytes in melanoma |
After endocytosis , membrane proteins can recycle to the cell membrane or be degraded in lysosomes . Cargo ubiquitylation favors their lysosomal targeting and can be regulated by external signals , but the mechanism is ill-defined . Here , we studied the post-endocytic trafficking of Jen1 , a yeast monocarboxylate tran... | The plasma membrane that surrounds cells contains many different proteins that perform tasks such as detecting signals sent to the cell , and transporting molecules into or out of the cell . To adapt to changing conditions , cells remodel their membrane to change how much of each type of protein is present . A process ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2014 | Integrated control of transporter endocytosis and recycling by the arrestin-related protein Rod1 and the ubiquitin ligase Rsp5 |
We have identified a replication-independent histone variant , Hist2h2be ( referred to herein as H2be ) , which is expressed exclusively by olfactory chemosensory neurons . Levels of H2BE are heterogeneous among olfactory neurons , but stereotyped according to the identity of the co-expressed olfactory receptor ( OR ) ... | A hallmark of the nervous systems of all mammals is their capacity to undergo changes in function that are shaped by experience . This phenomenon underlies the ability of our brains to develop properly and to learn , and also enables various sensory systems—including the visual , auditory and olfactory systems—to perfo... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2012 | The activity-dependent histone variant H2BE modulates the life span of olfactory neurons |
Many transcription factors co-express with their homologs to regulate identical target genes , however the advantages of such redundancies remain elusive . Using single-cell imaging and microfluidics , we study the yeast general stress response transcription factor Msn2 and its seemingly redundant homolog Msn4 . We fin... | Cells respond to environmental signals by activating proteins called transcription factors . These bind to the DNA that is stored in the cell nucleus and turn on specific genes to make gene products . Many of these transcription factors move in and out of the nucleus once activated . Different environmental signals aff... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology"
] | 2016 | Dynamic control of gene regulatory logic by seemingly redundant transcription factors |
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