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Stop codon readthrough ( SCR ) occurs when the ribosome miscodes at a stop codon . Such readthrough events can be therapeutically desirable when a premature termination codon ( PTC ) is found in a critical gene . To study SCR in vivo in a genome-wide manner , we treated mammalian cells with aminoglycosides and performe... | Many genes provide a set of instructions needed to build a protein , which are read by structures called ribosomes through a process called translation . The genetic information contains a short , coded instruction called a stop codon which marks the end of the protein . When a ribosome finds a stop codon it should sto... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression"
] | 2020 | Stop codon context influences genome-wide stimulation of termination codon readthrough by aminoglycosides |
The hantavirus envelope glycoproteins Gn and Gc mediate virion assembly and cell entry , with Gc driving fusion of viral and endosomal membranes . Although the X-ray structures and overall arrangement of Gn and Gc on the hantavirus spikes are known , their detailed interactions are not . Here we show that the lateral c... | Hantaviruses infect rodents and other small mammals , but do not harm them . When transmitted to humans , often through rodent urine , feces or saliva , they can cause serious and even fatal diseases . Currently , there are no known methods that effectively prevent hantavirus infections or treat the diseases that they ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"microbiology",
"and",
"infectious",
"disease"
] | 2019 | Molecular organization and dynamics of the fusion protein Gc at the hantavirus surface |
How oocytes are transferred into an oviduct with a receptive environment remains poorly known . We found that glands of the Drosophila female reproductive tract , spermathecae and/or parovaria , are required for ovulation and to promote sperm storage . Reducing total secretory cell number by interferring with Notch sig... | Mammalian oviducts , or Fallopian tubes , convey egg cells from the ovaries to the uterus . Signalling between the ovary and oviduct , and secretory products produced throughout the reproductive tract , help to increase the likelihood of conception , minimise the loss of egg cells , and reduce the risk of ectopic pregn... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2013 | Ovulation in Drosophila is controlled by secretory cells of the female reproductive tract |
The cereblon modulating agents ( CMs ) including lenalidomide , pomalidomide and CC-220 repurpose the Cul4-RBX1-DDB1-CRBN ( CRL4CRBN ) E3 ubiquitin ligase complex to induce the degradation of specific neomorphic substrates via polyubiquitination in conjunction with E2 ubiquitin-conjugating enzymes , which have until no... | Cells routinely breakdown damaged or unwanted proteins to recycle their building blocks . In humans , most of these unwanted proteins are first tagged with a chain of smaller proteins called ubiquitin , in a process known as ubiquitination . Three kinds of enzymes – named E1 , E2 and E3 – act one after the other to rec... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cancer",
"biology"
] | 2018 | UBE2G1 governs the destruction of cereblon neomorphic substrates |
The HIV capsid is semipermeable and covered in electropositive pores that are essential for viral DNA synthesis and infection . Here , we show that these pores bind the abundant cellular polyanion IP6 , transforming viral stability from minutes to hours and allowing newly synthesised DNA to accumulate inside the capsid... | Viruses like HIV invade cells and replicate their genome to create new viruses . To hide from components of our immune system that are active inside the cell , HIV uses a protein shell called a capsid , which protects its genome from detection and destruction . However , the capsid faces an engineering challenge beyond... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics",
"microbiology",
"and",
"infectious",
"disease"
] | 2018 | IP6 is an HIV pocket factor that prevents capsid collapse and promotes DNA synthesis |
Despite extensive scrutiny of the myosin superfamily , the lack of high-resolution structures of actin-bound states has prevented a complete description of its mechanochemical cycle and limited insight into how sequence and structural diversification of the motor domain gives rise to specialized functional properties .... | Like miniature motors , proteins called myosins generate the forces needed for cells to move and for muscles to contract . Myosins use the energy stored in a chemical called ATP to move along filaments made from another protein called actin and produce force . The same part of the myosin protein that binds to and uses ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2017 | Cryo-EM structures reveal specialization at the myosin VI-actin interface and a mechanism of force sensitivity |
Membrane protein biogenesis requires the coordinated movement of hydrophobic transmembrane domains ( TMD ) from the cytosolic vestibule of the Sec61 channel into the lipid bilayer . Molecular insight into TMD integration has been hampered by the difficulty of characterizing intermediates during this intrinsically dynam... | Cells are surrounded by a plasma membrane that acts like a barrier around the cell—keeping the cell’s boundaries distinct from surrounding cells and helping to regulate the contents of the cell . This plasma membrane is made up mostly of two layers of fatty molecules , and is also studded with proteins . Some of these ... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology"
] | 2014 | An allosteric Sec61 inhibitor traps nascent transmembrane helices at the lateral gate |
The size and position of mitotic spindles is determined by the lengths of their constituent microtubules . Regulation of microtubule length requires feedback to set the balance between growth and shrinkage . Whereas negative feedback mechanisms for microtubule length control , based on depolymerizing kinesins and sever... | Cells contain an extensive network of long filaments called microtubules , which are made of a protein called tubulin and are essential for a wide variety of processes such as enabling cells to divide and move . Microtubules also serve as tracks along which motor proteins transport molecules from one part of the cell t... | [
"Abstract",
"Results",
"and",
"discussion",
"Materials",
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"methods"
] | [
"cell",
"biology",
"short",
"report",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2015 | Kinesin Kip2 enhances microtubule growth in vitro through length-dependent feedback on polymerization and catastrophe |
Cytosolic hormone levels must be tightly controlled at the level of influx , efflux , synthesis , degradation and compartmentation . To determine ABA dynamics at the single cell level , FRET sensors ( ABACUS ) covering a range ∼0 . 2–800 µM were engineered using structure-guided design and a high-throughput screening p... | Plants are able to respond to detrimental changes in their environment—when , for example , water becomes scarce or the soil becomes too salty—in ways that minimize stress and damage caused by these changes . Hormones are chemicals that trigger the plant’s response under these circumstances . Abscisic acid is the hormo... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology",
"cell",
"biology"
] | 2014 | Abscisic acid dynamics in roots detected with genetically encoded FRET sensors |
Grid cells in the brain respond when an animal occupies a periodic lattice of ‘grid fields’ during navigation . Grids are organized in modules with different periodicity . We propose that the grid system implements a hierarchical code for space that economizes the number of neurons required to encode location with a gi... | In the 1930s , neuroscientists studying how rodents find their way through a maze proposed that the animals could construct an internal map of the maze inside their heads . The map was thought to enable the animals to navigate between familiar locations and also to identify shortcuts and alternative routes whenever fam... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | A principle of economy predicts the functional architecture of grid cells |
Epigenetic clocks for mice were generated based on deep-sequencing analysis of the methylome . Here , we demonstrate that site-specific analysis of DNA methylation levels by pyrosequencing at only three CG dinucleotides ( CpGs ) in the genes Prima1 , Hsf4 , and Kcns1 facilitates precise estimation of chronological age ... | Epigenetic marks are chemical modifications found throughout the genome – the DNA within cells . By influencing the activity of nearby genes , the marks govern developmental processes and help cells to adapt to changes in their surroundings . Some epigenetic marks can be gained or lost with age . A lot of aging researc... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"tools",
"and",
"resources",
"genetics",
"and",
"genomics"
] | 2018 | Epigenetic age-predictor for mice based on three CpG sites |
During cortical development , the identity of major classes of long-distance projection neurons is established by the expression of molecular determinants , which become gradually restricted and mutually exclusive . However , the mechanisms by which projection neurons acquire their final properties during postnatal sta... | The cerebral cortex is part of the outer layer of the mammalian brain , and it is important for a range of processes , including sensing , movement and conscious thought . The cerebral cortex is subdivided into several areas that are deputed to different functions . Each area is composed of an astounding variety of cel... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Conclusion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2016 | Area-specific development of distinct projection neuron subclasses is regulated by postnatal epigenetic modifications |
The SNAREs SNAP25 and SNAP23 are proteins that are initially cytosolic after translation , but then become stably attached to the cell membrane through palmitoylation of cysteine residues . For palmitoylation to occur , membrane association is a prerequisite , but it is unclear which motif may increase the affinities o... | Cells often communicate with each other by releasing chemicals that normally are stored in small membrane-bound compartments called vesicles . For example , when a neuron is stimulated , vesicles merge with its cell membrane and release their content into a gap between itself and other neurons . This complicated proces... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2017 | Electrostatic anchoring precedes stable membrane attachment of SNAP25/SNAP23 to the plasma membrane |
When choosing actions , we can act decisively , vacillate , or suffer momentary indecision . Studying how individual decisions unfold requires moment-by-moment readouts of brain state . Here we provide such a view from dorsal premotor and primary motor cortex . Two monkeys performed a novel decision task while we recor... | Some decisions are easy to make . We know almost immediately what outcome we want to achieve and what actions are required to do so . But other decisions involve more deliberation: there may be more factors to consider or more at stake , or the best course of action may simply not be immediately apparent . Under such c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Vacillation, indecision and hesitation in moment-by-moment decoding of monkey motor cortex |
Hox proteins are well-established developmental regulators that coordinate cell fate and morphogenesis throughout embryogenesis . In contrast , our knowledge of their specific molecular modes of action is limited to the interaction with few cofactors . Here , we show that Hox proteins are able to interact with a wide r... | In all animals , it is important that cells are correctly organised into tissues and organs . This organisation starts in the embryo , and cells are instructed to perform different roles depending on their position within the body . A family of proteins called the Hox proteins coordinates the organisation of the cells ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"genetics",
"and",
"genomics"
] | 2015 | Inhibitory activities of short linear motifs underlie Hox interactome specificity in vivo |
Animals collect sensory information from the world and make adaptive choices about how to respond to it . Here , we reveal a network motif in the brain for one of the most fundamental behavioral choices made by bilaterally symmetric animals: whether to respond to a sensory stimulus by moving to the left or to the right... | Humans and other vertebrate animals constantly make choices about whether to respond to the left or to the right . Do they look left or right; turn left or right; reach left or right ? In humans , the distinction between left and right is so fundamental that it has entered our collective thinking . Many societies defin... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | A circuit motif in the zebrafish hindbrain for a two alternative behavioral choice to turn left or right |
When mammalian cells detect a viral infection , they initiate a type I interferon ( IFNs ) response as part of their innate immune system . This antiviral mechanism is conserved in virtually all cell types , except for embryonic stem cells ( ESCs ) and oocytes which are intrinsically incapable of producing IFNs . Despi... | Living cells are under constant attack from disease-causing agents , such as viruses and bacteria . As a result , they have evolved various protective mechanisms to fight off these agents . One of the most important ways that an animal cell protects itself from infection is through the interferon response , which warns... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"stem",
"cells",
"and",
"regenerative",
"medicine"
] | 2019 | MicroRNA-deficient mouse embryonic stem cells acquire a functional interferon response |
Sodium/proton antiporters are essential for sodium and pH homeostasis and play a major role in human health and disease . We determined the structures of the archaeal sodium/proton antiporter MjNhaP1 in two complementary states . The inward-open state was obtained by x-ray crystallography in the presence of sodium at p... | Although the membrane that surrounds a cell is effective at separating the inside of a cell from the outside environment , certain molecules and ions must enter or leave the cell for it to work correctly . Proteins embedded in the cell membrane , called transporters , ensure this occurs . Transporters that are found in... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2014 | Structure and transport mechanism of the sodium/proton antiporter MjNhaP1 |
Mutation and natural selection shape the genetic variation in natural populations . Here , we directly estimated the spontaneous mutation rate by sequencing new Drosophila mutation accumulation lines maintained with minimal natural selection . We inferred strong stabilizing natural selection on quantitative traits beca... | A key challenge in evolutionary biology is to understand how genetic variation – differences in the DNA of individuals in a population – is generated and maintained to create the enormous diversity that exists in nature . Mutations to the DNA introduce new variation , but these are constantly removed from populations b... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"genetics",
"and",
"genomics"
] | 2016 | Spontaneous mutations and the origin and maintenance of quantitative genetic variation |
Emerging evidence suggests that the nervous system is involved in tumor development in the periphery , however , the role of the central nervous system remains largely unknown . Here , by combining genetic , chemogenetic , pharmacological , and electrophysiological approaches , we show that hypothalamic oxytocin ( Oxt ... | Colorectal ( or ‘bowel’ ) cancer killed nearly a million people in 2018 alone: it is , in fact , the second leading cause of cancer death globally . Lifestyle factors and inflammatory bowel conditions such as chronic colitis can heighten the risk of developing the disease . However , research has also linked to the dev... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience",
"cancer",
"biology"
] | 2021 | Stimulation of hypothalamic oxytocin neurons suppresses colorectal cancer progression in mice |
In the antisaccade task , which is considered a sensitive assay of cognitive function , a salient visual cue appears and the participant must look away from it . This requires sensory , motor-planning , and cognitive neural mechanisms , but what are their unique contributions to performance , and when exactly are they ... | How do you decide what to do next ? Your behavior at any given moment is usually the result of a competition between internal and external factors . Internal factors include your existing plans , goals and knowledge . External factors include events happening in the world around you . When out driving , for example , y... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2019 | Voluntary and involuntary contributions to perceptually guided saccadic choices resolved with millisecond precision |
Holliday junctions ( HJs ) are key DNA intermediates in homologous recombination . They link homologous DNA strands and have to be faithfully removed for proper DNA segregation and genome integrity . Here , we present the crystal structure of human HJ resolvase GEN1 complexed with DNA at 3 . 0 Å resolution . The GEN1 c... | Factors like ultraviolet radiation and harmful chemicals can damage DNA inside living cells , which can lead to breaks that form across both strands in the DNA double helix . “Homologous recombination” is one of the major mechanisms by which cells repair these double-strand breaks . During this process , the broken DNA... | [
"Abstract",
"Introduction",
"Results",
"Discussion"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2015 | Human Holliday junction resolvase GEN1 uses a chromodomain for efficient DNA recognition and cleavage |
The access of Transcription Factors ( TFs ) to their cognate DNA binding motifs requires a precise control over nucleosome positioning . This is especially important following DNA replication and during mitosis , both resulting in profound changes in nucleosome organization over TF binding regions . Using mouse Embryon... | A single cell contains several meters of DNA which must be tightly packaged to fit inside . Typically , the DNA is wound around proteins , like a thread around many spools , to form more compact structures called nucleosomes . Before a cell divides in two , however , it needs first to access and replicate its DNA so th... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression"
] | 2019 | CTCF confers local nucleosome resiliency after DNA replication and during mitosis |
Recently , a small-molecule communication mechanism was discovered in a range of Bacillus-infecting bacteriophages , which these temperate phages use to inform their lysis-lysogeny decision . We present a mathematical model of the ecological and evolutionary dynamics of such viral communication and show that a communic... | Bacteriophages , or phages for short , are viruses that need to infect bacteria to multiply . Once inside a cell , phages follow one of two strategies . They either start to replicate quickly , killing the host in the process; or they lay dormant , their genetic material slowly duplicating as the bacterium divides . Th... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"evolutionary",
"biology",
"computational",
"and",
"systems",
"biology"
] | 2021 | Repeated outbreaks drive the evolution of bacteriophage communication |
Actin filaments and microtubules create diverse cellular protrusions , but intermediate filaments , the strongest and most stable cytoskeletal elements , are not known to directly participate in the formation of protrusions . Here we show that keratin intermediate filaments directly regulate the morphogenesis of micror... | Cells adopt a wide array of irregular and bumpy shapes , which are scaffolded by an internal structure called the cytoskeleton . This network of filaments can deform the cell membrane the way tent poles frame a canvas . Cells contain three types of cytoskeleton elements ( actin filaments , intermediate filaments , and ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cell",
"biology"
] | 2020 | Keratins and plakin family cytolinker proteins control the length of epithelial microridge protrusions |
Translation is a core cellular process carried out by a highly conserved macromolecular machine , the ribosome . There has been remarkable evolutionary adaptation of this machine through the addition of eukaryote-specific ribosomal proteins whose individual effects on ribosome function are largely unknown . Here we sho... | Ribosomes are structures within cells that are responsible for making proteins . Molecules called messenger RNAs ( or mRNAs ) , which contain genetic information derived from the DNA of a gene , pass through ribosomes that then “translate” that information to build proteins . Although all living cells contain ribosomes... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology"
] | 2016 | The ribosomal protein Asc1/RACK1 is required for efficient translation of short mRNAs |
Autism Spectrum Disorder ( ASD ) is the most prevalent neurodevelopmental disorder in the United States and often co-presents with sleep problems . Sleep problems in ASD predict the severity of ASD core diagnostic symptoms and have a considerable impact on the quality of life of caregivers . Little is known , however ,... | Autism spectrum disorder ( ASD ) is the most common neurodevelopmental disorder in the United States . People with ASD tend to have difficulties with communication and social interactions , restricted interests , and may repeat certain behaviors . They also often struggle to fall or stay asleep . Sleep deprivation may ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2019 | Shank3 modulates sleep and expression of circadian transcription factors |
Understanding the relation between genotype and phenotype remains a major challenge . The difficulty of predicting individual mutation effects , and particularly the interactions between them , has prevented the development of a comprehensive theory that links genotypic changes to their phenotypic effects . We show tha... | Mutations are changes to DNA that provide the raw material upon which evolution can act . Therefore , to understand evolution , we need to know the effects of mutations , and how those mutations interact with each other ( a phenomenon referred to as epistasis ) . So far , few mathematical models allow scientists to pre... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"genetics",
"and",
"genomics"
] | 2017 | On the mechanistic nature of epistasis in a canonical cis-regulatory element |
When a human catches a ball , they estimate future target location based on the current trajectory . How animals , small and large , encode such predictive processes at the single neuron level is unknown . Here we describe small target-selective neurons in predatory dragonflies that exhibit localized enhanced sensitivi... | Catching a ball requires a person to track the speed and direction of a small moving target often against a cluttered and varying background . Predatory insects , like dragonflies , face a similar challenge when they pursue their prey through the air . The task is made a little easier , however , by the fact that most ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | A predictive focus of gain modulation encodes target trajectories in insect vision |
Efficient detection and reaction to negative signals in the environment is essential for survival . In social situations , these signals are often ambiguous and can imply different levels of threat for the observer , thereby making their recognition susceptible to contextual cues – such as gaze direction when judging f... | Facial expressions can communicate important social signals , and understanding these signals can be essential for surviving threatening situations . Past studies have identified changes to brain activity and behavior in response to particular social threats , but it is not clear how the brain processes information fro... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Anxiety dissociates the adaptive functions of sensory and motor response enhancements to social threats |
Excitatory and inhibitory synapses are the brain’s most abundant synapse types . However , little is known about their formation during critical periods of motor skill learning , when sensory experience defines a motor target that animals strive to imitate . In songbirds , we find that exposure to tutor song leads to e... | A wide range of species use complex sounds to communicate , including humans and songbirds like zebra finches . During a critical period of learning , infants and young animals learn how to remember and discriminate this ‘language’ from other sounds . However , the changes that happen in the brain during this learning ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2018 | Excitatory and inhibitory synapse reorganization immediately after critical sensory experience in a vocal learner |
Maintenance of muscle function requires assembly of contractile proteins into highly organized sarcomeres . Mutations in Kelch-like protein 41 ( KLHL41 ) cause nemaline myopathy , a fatal muscle disorder associated with sarcomere disarray . We generated KLHL41 mutant mice , which display lethal disruption of sarcomeres... | Together with the tendon and joints , muscles move our bones by contracting and relaxing . Muscles are formed of bundles of lengthy cells , which are made up of small units called sarcomeres . To contract , the proteins in the sarcomere need to be able to slide past each other . In healthy muscle cells , the proteins i... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2017 | KLHL41 stabilizes skeletal muscle sarcomeres by nonproteolytic ubiquitination |
Filopodial dynamics are thought to control growth cone guidance , but the types and roles of growth cone dynamics underlying neural circuit assembly in a living brain are largely unknown . To address this issue , we have developed long-term , continuous , fast and high-resolution imaging of growth cone dynamics from ax... | Genes encode complicated developmental processes , but it is clear that genetic information cannot encode each and every individual connection that forms between the nerve cells in a brain . Instead , the individual cells and nerve endings must make decisions during brain development . Up until now , few examples were ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Filopodial dynamics and growth cone stabilization in Drosophila visual circuit development |
Fibrolamellar carcinoma ( FLC ) is a rare liver cancer . FLCs uniquely produce DNAJ-PKAc , a chimeric enzyme consisting of a chaperonin-binding domain fused to the Cα subunit of protein kinase A . Biochemical analyses of clinical samples reveal that a unique property of this fusion enzyme is the ability to recruit heat... | Fibrolamellar carcinoma ( or FLC for short ) is a rare type of liver cancer that affects teenagers and young adults . FLC tumors are often resistant to standard radiotherapy or chemotherapy treatments . The only way to treat FLC is to remove tumors by surgery . However , often the tumors come back after initial treatme... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cancer",
"biology"
] | 2019 | An acquired scaffolding function of the DNAJ-PKAc fusion contributes to oncogenic signaling in fibrolamellar carcinoma |
Limited understanding of infant pain has led to its lack of recognition in clinical practice . While the network of brain regions that encode the affective and sensory aspects of adult pain are well described , the brain structures involved in infant nociceptive processing are less well known , meaning little can be in... | Doctors long believed that infants do not feel pain the way that older children and adults do . Instead , they believed that the infants' responses to discomfort were reflexes . Based on these beliefs , it was a routine practice to perform surgery on infants without suitable pain relief up until the late 1980s . Even n... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"neuroscience"
] | 2015 | fMRI reveals neural activity overlap between adult and infant pain |
Alveolar rhabdomyosarcoma is a pediatric soft-tissue sarcoma caused by PAX3/7-FOXO1 fusion oncogenes and is characterized by impaired skeletal muscle development . We developed human PAX3-FOXO1 -driven zebrafish models of tumorigenesis and found that PAX3-FOXO1 exhibits discrete cell lineage susceptibility and transfor... | One of the most common cancers in children and adolescents is rhabdomyosarcoma , a cancer of soft tissue such as muscle , tendon or cartilage . The fusion of DNA on two different chromosomes causes the most aggressive form of rhabdomyosarcoma . The fused DNA produces an abnormal protein called PAX3-FOXO1 . During norma... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"cancer",
"biology"
] | 2018 | PAX3-FOXO1 transgenic zebrafish models identify HES3 as a mediator of rhabdomyosarcoma tumorigenesis |
Analysis of brain ultrastructure using electron microscopy typically relies on chemical fixation . However , this is known to cause significant tissue distortion including a reduction in the extracellular space . Cryo fixation is thought to give a truer representation of biological structures , and here we use rapid , ... | For many years , scientists have used chemicals to preserve brain tissue to observe its fine structure using high power microscopes . Korogod et al . now show that these chemicals , or fixatives , cause the tissue to shrink , giving the false impression that the cells are tightly packed together . This has led to misin... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Ultrastructural analysis of adult mouse neocortex comparing aldehyde perfusion with cryo fixation |
Caspase-8 is a key player in extrinsic apoptosis and its activity is often downregulated in cancer . However , human Caspase-8 expression is retained in some tumors , including glioblastoma ( GBM ) , suggesting that it may support cancer growth in these contexts . GBM , the most aggressive of the gliomas , is character... | Cancer cells are different to normal cells in various ways . Most cancer cells , for example , delete or switch off the gene for a protein called Caspase-8 . This is because this protein is best known for promoting cell death and stopping tumor cells from growing . However , some cancers keep the gene for Caspase-8 swi... | [
"Abstract",
"Introduction",
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"discussion",
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] | [
"short",
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"cancer",
"biology"
] | 2017 | Caspase-8 contributes to angiogenesis and chemotherapy resistance in glioblastoma |
Intracellular pH ( pHi ) dynamics is increasingly recognized as an important regulator of a range of normal and pathological cell behaviors . Notably , increased pHi is now acknowledged as a conserved characteristic of cancers and in cell models is confirmed to increase proliferation and migration as well as limit apop... | An individual can develop cancer if cells in their body gain genetic mutations that enable the cells to divide more rapidly and move—or metastasize—to other tissues and organs . These mutations can alter the chemistry of the cell; for example , the inside of a cancer cell is much more alkaline ( has a higher pH ) than ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"cancer",
"biology"
] | 2015 | Increased H+ efflux is sufficient to induce dysplasia and necessary for viability with oncogene expression |
Immunity to malaria is often considered slow to develop but this only applies to defense mechanisms that function to eliminate parasites ( resistance ) . In contrast , immunity to severe disease can be acquired quickly and without the need for improved pathogen control ( tolerance ) . Using Plasmodium chabaudi , we sho... | Malaria is a parasitic infection spread by mosquitoes that causes hundreds of millions of cases each year . People are most likely to die from malaria the first time they are infected – usually when they are young children . Among those who survive , however , few will develop severe symptoms again , even though they a... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease",
"immunology",
"and",
"inflammation"
] | 2021 | Inducible mechanisms of disease tolerance provide an alternative strategy of acquired immunity to malaria |
Numerous challenges have impeded HIV-1 vaccine development . Among these is the lack of a convenient small animal model in which to study antibody elicitation and efficacy . We describe a chimeric Rhabdo-Immunodeficiency virus ( RhIV ) murine model that recapitulates key features of HIV-1 entry , tropism and antibody s... | One of the main obstacles to developing a vaccine against HIV-1 is teaching the immune system to recognize the envelope proteins on the surface of the virus , which are also found on infected cells . Envelope proteins allow HIV-1 to attach to and infect a type of human immune cell known as a T-cell , by interacting wit... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease"
] | 2019 | Rhabdo-immunodeficiency virus, a murine model of acute HIV-1 infection |
The prefrontal cortex ( PFC ) is thought to orchestrate cognitive dynamics . However , in tests of bistable visual perception , no direct evidence supporting such presumable causal roles of the PFC has been reported except for a recent work . Here , using a novel brain-state-dependent neural stimulation system , we ide... | A cube that seems to shift its spatial arrangement as you keep looking; the elegant silhouette of a pirouetting dancer , which starts to spin in the opposite direction the more you stare at it; an illustration that shows two profiles – or is it a vase ? These optical illusions are examples of bistable visual perception... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2021 | Causal roles of prefrontal cortex during spontaneous perceptual switching are determined by brain state dynamics |
Insufficient protein-folding capacity in the endoplasmic reticulum ( ER ) induces the unfolded protein response ( UPR ) . In the ER lumen , accumulation of unfolded proteins activates the transmembrane ER-stress sensor Ire1 and drives its oligomerization . In the cytosol , Ire1 recruits HAC1 mRNA , mediating its non-co... | Proteins are built based on instructions in template molecules called messenger RNAs ( or mRNAs ) , which are copied from the DNA of genes . As they are made , proteins must fold into a specific three-dimensional shape and some proteins pass into a compartment in the cell , called the endoplasmic reticulum , in which t... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2014 | Specificity in endoplasmic reticulum-stress signaling in yeast entails a step-wise engagement of HAC1 mRNA to clusters of the stress sensor Ire1 |
Correct wiring is crucial for the proper functioning of the nervous system . Molecular gradients provide critical signals to guide growth cones , which are the motile tips of developing axons , to their targets . However , in vitro , growth cones trace highly stochastic trajectories , and exactly how molecular gradient... | For your brain to work , millions of nerve cells have to be connected together precisely . To achieve this , growing nerve fibres navigate through the developing brain by following chemical cues . One important such cue is how the concentration of a chemical varies with distance across the brain . This variation is kno... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | A mathematical model explains saturating axon guidance responses to molecular gradients |
The calcium-activated chloride channel TMEM16A is a member of a conserved protein family that comprises ion channels and lipid scramblases . Although the structure of the scramblase nhTMEM16 has defined the architecture of the family , it was unknown how a channel has adapted to cope with its distinct functional proper... | Cell membranes are made up of two layers of oily molecules , called lipids , embedded with a variety of proteins . Each type of membrane protein carries out a particular activity for the cell , and many are involved in transporting other molecules from one side of the membrane to the other . The TMEM16 proteins are a l... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2017 | Structural basis for anion conduction in the calcium-activated chloride channel TMEM16A |
Dystroglycan is a cell membrane receptor that organizes the basement membrane by binding ligands in the extracellular matrix . Proper glycosylation of the α-dystroglycan ( α-DG ) subunit is essential for these activities , and lack thereof results in neuromuscular disease . Currently , neither the glycan synthesis path... | Dystroglycan is a protein that is critical for the proper function of many tissues , especially muscles and brain . Dystroglycan helps to connect the structural network inside the cell with the matrix outside of the cell . The extracellular matrix fills the space between the cells to serve as a scaffold and hold cells ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology"
] | 2014 | The glucuronyltransferase B4GAT1 is required for initiation of LARGE-mediated α-dystroglycan functional glycosylation |
Human performance at categorizing natural visual images surpasses automatic algorithms , but how and when this function arises and develops remain unanswered . We recorded scalp electrical brain activity in 4–6 months infants viewing images of objects in their natural background at a rapid rate of 6 images/second ( 6 H... | Putting names to faces can sometimes be challenging , but humans are generally extremely good at recognising faces . Computers , on the other hand , often find it difficult to categorize a face as a face . Indeed , a major challenge in face recognition arises because faces come in many different shapes and sizes . More... | [
"Abstract",
"Introduction",
"Results",
"Discussion"
] | [
"neuroscience"
] | 2015 | Rapid categorization of natural face images in the infant right hemisphere |
Invasion of erythrocytes by Plasmodial merozoites is a composite process involving the interplay of several proteins . Among them , the Plasmodium falciparum Cysteine-Rich Protective Antigen ( PfCyRPA ) is a crucial component of a ternary complex , including Reticulocyte binding-like Homologous protein 5 ( PfRH5 ) and ... | Malaria is one of the deadliest infectious diseases worldwide , killing over 400 , 000 people a year . About 200 million people are infected every year , placing a huge social and medical burden especially on developing countries . Microscopic parasites known as Plasmodium are responsible for causing this disease . Pla... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics",
"microbiology",
"and",
"infectious",
"disease"
] | 2017 | Structure of the malaria vaccine candidate antigen CyRPA and its complex with a parasite invasion inhibitory antibody |
Exposure to early-life adversity ( ELA ) increases the risk for psychopathologies associated with amygdala-prefrontal cortex ( PFC ) circuits . While sex differences in vulnerability have been identified with a clear need for individualized intervention strategies , the neurobiological substrates of ELA-attributable di... | Having a traumatic childhood increases the risk a person will develop anxiety disorders later in life . Early life adversity affects men and women differently , but scientists do not yet know why . Learning more could help scientists develop better ways to prevent or treat anxiety disorders in men and women who experie... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2020 | Altered corticolimbic connectivity reveals sex-specific adolescent outcomes in a rat model of early life adversity |
The localisation of oskar mRNA to the posterior of the Drosophila oocyte defines where the abdomen and germ cells form in the embryo . Kinesin 1 transports oskar mRNA to the oocyte posterior along a polarised microtubule cytoskeleton that grows from non-centrosomal microtubule organising centres ( ncMTOCs ) along the a... | Many cells are asymmetric or polarized , which allows them to perform the tasks necessary for an organism to live and grow . In these polarized cells , the top and bottom , left and right , and front and back parts are different from one another . To achieve this , cells actively move molecules to the locations in the ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2017 | Localised dynactin protects growing microtubules to deliver oskar mRNA to the posterior cortex of the Drosophila oocyte |
Although decades of studies have produced a generalized model for tetrapod limb development , urodeles deviate from anurans and amniotes in at least two key respects: their limbs exhibit preaxial skeletal differentiation and do not develop an apical ectodermal ridge ( AER ) . Here , we investigated how Sonic hedgehog (... | Salamanders are a group of amphibians that are well-known for their ability to regenerate lost limbs and other body parts . At the turn of the twentieth century , researchers used salamander embryos as models to understand the basic concepts of how limbs develop in other four-limbed animals , including amphibians , mam... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"evolutionary",
"biology"
] | 2019 | Fgf-signaling is compartmentalized within the mesenchyme and controls proliferation during salamander limb development |
Circadian oscillations emerge from transcriptional and post-translational feedback loops . An important step in generating rhythmicity is the translocation of clock components into the nucleus , which is regulated in many cases by kinases . In mammals , the kinase promoting the nuclear import of the key clock component... | Anyone who has crossed multiple time zones on a long flight will be familiar with jet lag , and that feeling of wanting to sleep at lunchtime and eat in the middle of the night . Many bodily processes , including appetite and wakefulness , roughly follow a 24-hour cycle . These cycles are known as circadian rhythms , f... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"neuroscience"
] | 2019 | Cyclin-dependent kinase 5 (CDK5) regulates the circadian clock |
The postnatal neurodevelopmental disorder Rett syndrome , caused by mutations in MECP2 , produces a diverse array of symptoms , including loss of language , motor , and social skills and the development of hand stereotypies , anxiety , tremor , ataxia , respiratory dysrhythmias , and seizures . Surprisingly , despite t... | Rett syndrome is a childhood brain disorder that mainly affects girls and causes symptoms including anxiety , tremors , uncoordinated movements and breathing difficulties . Rett syndrome is caused by mutations in a gene called MECP2 , which is found on the X chromosome . Males with MECP2 mutations are rare but have mor... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Restoration of Mecp2 expression in GABAergic neurons is sufficient to rescue multiple disease features in a mouse model of Rett syndrome |
Salivary glands , such as submandibular glands ( SMGs ) , are composed of branched epithelial ductal networks that terminate in acini that together produce , transport and secrete saliva . Here , we show that the transcriptional regulator Yap , a key effector of the Hippo pathway , is required for the proper patterning... | Our mouths are continually bathed by saliva – a thick , clear liquid that helps us to swallow and digest our food and protects us against infections . Saliva is produced by and released from salivary glands , which are organs that contain a branched network of tubes . Salivary glands can only properly develop if immatu... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology"
] | 2017 | The Hippo pathway effector YAP is an essential regulator of ductal progenitor patterning in the mouse submandibular gland |
The architecture of corticobasal ganglia pathways allows for many routes to inhibit a planned action: the hyperdirect pathway performs fast action cancellation and the indirect pathway competitively constrains execution signals from the direct pathway . We present a novel model , principled off of basal ganglia circuit... | Imagine you are playing baseball . You can decide not to swing the bat at the incoming ball if you see that it is a wild pitch that will be way outside the strike zone; this is known as reactive control . Alternatively , you may decide not to move because you were coached never to swing at the first pitch ( proactive c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology",
"neuroscience"
] | 2015 | Competing basal ganglia pathways determine the difference between stopping and deciding not to go |
Pheromones play an important role in the behavior , ecology , and evolution of many organisms . The structure of many insect pheromones typically consists of a hydrocarbon backbone , occasionally modified with various functional oxygen groups . Here we show that sex-specific triacylclyerides ( TAGs ) are broadly conser... | For animals , the ultimate purpose of life is to have sex , as nothing is more important than passing down your genes to future generations . A wide range of strategies are therefore employed throughout nature to maximize the chances of sexual success , from ostentatious courtship rituals to the subtle subliminal signa... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology",
"biochemistry",
"and",
"chemical",
"biology"
] | 2014 | Sex-specific triacylglycerides are widely conserved in Drosophila and mediate mating behavior |
Animals and humans need to move deftly and flexibly to adapt to environmental demands . Despite a large body of work on the neural control of walking in invertebrates and vertebrates alike , the mechanisms underlying the motor flexibility that is needed to adjust the motor behavior remain largely unknown . Here , we in... | Walking along a curve or turning is a complex manoeuvre for the nervous system , as it must coordinate different leg movements on each side of the body . Rhythmic processes such as walking are controlled by networks of neurons called central pattern generators . The resulting movements can be adjusted by feedback from ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Body side-specific control of motor activity during turning in a walking animal |
The heterotetrameric AP and F-COPI complexes help to define the cellular map of modern eukaryotes . To search for related machinery , we developed a structure-based bioinformatics tool , and identified the core subunits of TSET , a 'missing link' between the APs and COPI . Studies in Dictyostelium indicate that TSET is... | Eukaryotes make up almost all of the life on Earth that we can see around us , and include organisms as diverse as animals , fungi , plants , slime moulds , and seaweeds . The defining feature of eukaryotes is that , unlike nearly all bacteria , they have membrane-bound compartments—such as the nucleus—within their cel... | [
"Abstract",
"Introduction",
"Results",
"and",
"discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"cell",
"biology"
] | 2014 | Characterization of TSET, an ancient and widespread membrane trafficking complex |
Mutations in the catalytic subunit of phosphoinositide 3-kinase ( PIK3CA ) and other PI3K-AKT pathway components have been associated with cancer and a wide spectrum of brain and body overgrowth . In the brain , the phenotypic spectrum of PIK3CA-related segmental overgrowth includes bilateral dysplastic megalencephaly ... | An enzyme called PI3K is involved in a major signaling pathway that controls cell growth . Mutations in this pathway have devastating consequences . When such mutations happen in adults , they can lead to cancer . Mutations that occur in embryos can cause major developmental birth defects , including abnormally large b... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2015 | Mouse models of human PIK3CA-related brain overgrowth have acutely treatable epilepsy |
How dietary selection affects genome evolution to define the optimal range of nutrient intake is a poorly understood question with medical relevance . We have addressed this question by analyzing Drosophila simulans and sechellia , recently diverged species with differential diet choice . D . sechellia larvae , special... | Animals meet their nutritional needs in a variety of ways . Some animals are specialists feeding only on one type of food; others are generalists that can choose many different kinds of food depending on the situation . Despite these differences in diet , animals have similar needs for basic cellular metabolism . This ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"genetics",
"and",
"genomics"
] | 2018 | Natural variation in sugar tolerance associates with changes in signaling and mitochondrial ribosome biogenesis |
Ascorbic acid ( vitamin C ) is an enzyme co-factor in eukaryotes that also plays a critical role in protecting photosynthetic eukaryotes against damaging reactive oxygen species derived from the chloroplast . Many animal lineages , including primates , have become ascorbate auxotrophs due to the loss of the terminal en... | Animals , plants , algae and other eukaryotic organisms all need vitamin C to enable many of their enzymes to work properly . Vitamin C also protects plant and algal cells from damage by molecules called reactive oxygen species ( ROS ) , which can be produced when these cells harvest energy from sunlight in a process c... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology",
"evolutionary",
"biology"
] | 2015 | Evolution of alternative biosynthetic pathways for vitamin C following plastid acquisition in photosynthetic eukaryotes |
Although it is often tacitly assumed that gene regulatory interactions are finely tuned , how accurate gene regulation could evolve from a state without regulation is unclear . Moreover , gene expression noise would seem to impede the evolution of accurate gene regulation , and previous investigations have provided cir... | Genes are stretches of DNA that contain the instructions needed to make proteins and other molecules . By changing how much protein is produced from each gene ( i . e . , its expression ) , many organisms—including humans—can produce a wide variety of cell types with very different behaviors . Similarly , single-celled... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"computational",
"and",
"systems",
"biology"
] | 2015 | Expression noise facilitates the evolution of gene regulation |
Endocannabinoids are recently recognized regulators of brain development , but molecular effectors downstream of type-1 cannabinoid receptor ( CB1R ) -activation remain incompletely understood . We report atypical coupling of neuronal CB1Rs , after activation by endo- or exocannabinoids such as the marijuana component ... | Our brains are full of cells called neurons , which are connected to each other in complex networks that send messages around the brain . The way the neurons connect to each other , known as brain wiring , differs widely between individuals . Moreover , our brain wiring changes in response to our environment and experi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2014 | Cannabinoid-induced actomyosin contractility shapes neuronal morphology and growth |
Calcium channel blockers ( CCBs ) are prescribed to patients with Marfan syndrome for prophylaxis against aortic aneurysm progression , despite limited evidence for their efficacy and safety in the disorder . Unexpectedly , Marfan mice treated with CCBs show accelerated aneurysm expansion , rupture , and premature leth... | Marfan syndrome is a disorder that affects the body's connective tissues , which maintain the structure of the body and support organs and other tissues . People with Marfan syndrome have connective tissues that can stretch more than those of other people , which put them at increased risk of a life-threatening tear in... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"medicine"
] | 2015 | A deleterious gene-by-environment interaction imposed by calcium channel blockers in Marfan syndrome |
Bathymodiolus mussels live in symbiosis with intracellular sulfur-oxidizing ( SOX ) bacteria that provide them with nutrition . We sequenced the SOX symbiont genomes from two Bathymodiolus species . Comparison of these symbiont genomes with those of their closest relatives revealed that the symbionts have undergone gen... | Although bacteria are commonly associated with causing illness , many are actually beneficial to the organism they live in or on . The phenomenon of one species helping another to survive is known as symbiosis . Animals thrive at hydrothermal vents in the deep sea because of their partnerships with symbiotic bacteria .... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"microbiology",
"and",
"infectious",
"disease",
"genetics",
"and",
"genomics"
] | 2015 | Abundant toxin-related genes in the genomes of beneficial symbionts from deep-sea hydrothermal vent mussels |
Von Hippel-Landau ( VHL ) protein is a potent tumor suppressor regulating numerous pathways that drive cancer , but mutations in VHL are restricted to limited subsets of malignancies . Here we identified a novel mechanism for VHL suppression in tumors that do not have inactivating mutations . Using developmental proces... | Glioblastoma is the deadliest form of brain cancer , and the rate of patient survival has not significantly improved over the past 70 years . This cancer arises when glial cells , which provide support and insulation to nerve cells , develop mutations that alter the activity of certain genes or alter the role they play... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology"
] | 2017 | Daam2 driven degradation of VHL promotes gliomagenesis |
The control principles behind robust cyclic regeneration of hair follicles ( HFs ) remain unclear . Using multi-scale modeling , we show that coupling inhibitors and activators with physical growth of HFs is sufficient to drive periodicity and excitability of hair regeneration . Model simulations and experimental data ... | Skin includes hundreds of thousands of hair follicles that cycle through different stages of activity . Each follicle grows hair , sometimes ( in the case of long hairs like human head hair and horse tail hairs ) for several years , before losing it . The follicle then goes through a resting stage before starting to gr... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"computational",
"and",
"systems",
"biology"
] | 2017 | A multi-scale model for hair follicles reveals heterogeneous domains driving rapid spatiotemporal hair growth patterning |
Recent sequencing studies have extensively explored the somatic alterations present in the nuclear genomes of cancers . Although mitochondria control energy metabolism and apoptosis , the origins and impact of cancer-associated mutations in mtDNA are unclear . In this study , we analyzed somatic alterations in mtDNA fr... | The DNA in a cell's nucleus must be copied faithfully , and divided equally , when a cell divides to produce two new cells . Mistakes—or mutations—are sometimes made during the copying process , and mutations can also be introduced by exposing DNA to damaging agents known as mutagens , such as UV light or cigarette smo... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology",
"genetics",
"and",
"genomics"
] | 2014 | Origins and functional consequences of somatic mitochondrial DNA mutations in human cancer |
Amyloid precursor protein ( APP ) is enriched at the synapse , but its synaptic function is still poorly understood . We previously showed that GABAergic short-term plasticity is impaired in App knock-out ( App-/- ) animals , but the precise mechanism by which APP regulates GABAergic synaptic transmission has remained ... | Alzheimer’s disease is the most common form of dementia . One of the hallmarks of the disease is the formation of sticky protein clumps called amyloid plaques in the brain . These plaques are formed from specific fragments of a protein called APP . The intact form of APP is essential for synapses ( the junctions across... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | APP modulates KCC2 expression and function in hippocampal GABAergic inhibition |
In vertebrate development , the sequential and rhythmic segmentation of the body axis is regulated by a “segmentation clock” . This clock is comprised of a population of coordinated oscillating cells that together produce rhythmic gene expression patterns in the embryo . Whether individual cells autonomously maintain o... | The timing and pattern of gene activity in cells can be very important . For example , precise gene activity patterns in 24-hour circadian clocks help to set daily cycles of rest and activity in organisms . In such scenarios , cells often communicate with each other to coordinate the activity of their genes . To fully ... | [
"Abstract",
"Introduction",
"Results",
"Materials",
"and",
"methods"
] | [
"short",
"report",
"physics",
"of",
"living",
"systems",
"computational",
"and",
"systems",
"biology"
] | 2016 | Persistence, period and precision of autonomous cellular oscillators from the zebrafish segmentation clock |
Sphingolipids are important structural components of cell membranes and prominent signaling molecules controlling cell growth , differentiation , and apoptosis . Sphingolipids are particularly abundant in the brain , and defects in sphingolipid degradation are associated with several human neurodegenerative diseases . ... | All cells in the brain start life as stem cells which are yet to have a defined role in the body . A wide range of molecules and chemical signals guide stem cells towards a neuronal fate , including a group of molecules called sphingolipids . These molecules sit in the membrane surrounding the cell and play a pivotal r... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"stem",
"cells",
"and",
"regenerative",
"medicine",
"cell",
"biology"
] | 2021 | SIRT1 regulates sphingolipid metabolism and neural differentiation of mouse embryonic stem cells through c-Myc-SMPDL3B |
Centromeres vary greatly in size and sequence composition , ranging from ‘point’ centromeres with a single cenH3-containing nucleosome to ‘regional’ centromeres embedded in tandemly repeated sequences to holocentromeres that extend along the length of entire chromosomes . Point centromeres are defined by sequence , whe... | During cell division , the chromosomes in the original cell must be replicated and these ‘sister chromosomes’ must then be divided equally between the two new daughter cells . At first , the sister chromosomes are held together near a region called the centromere , which is important because the microtubules that pull ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"genetics",
"and",
"genomics"
] | 2014 | Holocentromeres are dispersed point centromeres localized at transcription factor hotspots |
Cancer clone evolution takes place within tissue ecosystem habitats . But , how exactly tumors arise from a few malignant cells within an intact epithelium is a central , yet unanswered question . This is mainly due to the inaccessibility of this process to longitudinal imaging together with a lack of systems that mode... | There are now drugs to treat many types of cancer , but questions still remain around how these diseases start in the first place . Researchers think that tumor growth begins when a single cell suffers damage to certain sites in its DNA that eventually cause it to divide uncontrollably . That damaged cell , and its des... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"tools",
"and",
"resources",
"cancer",
"biology"
] | 2020 | Tracking cells in epithelial acini by light sheet microscopy reveals proximity effects in breast cancer initiation |
The dynamics of predator-prey pursuit appears complex , making the development of a framework explaining predator and prey strategies problematic . We develop a model for terrestrial , cursorial predators to examine how animal mass modulates predator and prey trajectories and affects best strategies for both parties . ... | A pursuit between a predator and its prey involves complex strategies . Prey often make sudden sharp turns when running to evade a predator . Any predator that cannot turn quickly enough will have to run further to catch up with the prey again , thus potentially allowing the prey to pull away from the predator . The ti... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology"
] | 2015 | Mass enhances speed but diminishes turn capacity in terrestrial pursuit predators |
Cytoplasmic dynein is the predominant minus-end-directed microtubule ( MT ) motor in most eukaryotic cells . In addition to transporting vesicular cargos , dynein helps to organize MTs within MT networks such as mitotic spindles . How dynein performs such non-canonical functions is unknown . Here we demonstrate that dy... | When cells divide , they must also divide their contents . In particular , both ‘mother’ and ‘daughter’ cells require full sets of chromosomes , which must first be duplicated , and then evenly distributed between the cells . Protein filaments called microtubules form a network that helps to accurately segregate the ch... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2013 | Cytoplasmic dynein crosslinks and slides anti-parallel microtubules using its two motor domains |
Morphogenesis emerges from complex multiscale interactions between genetic and mechanical processes . To understand these processes , the evolution of cell shape , proliferation and gene expression must be quantified . This quantification is usually performed either in full 3D , which is computationally expensive and t... | Animals , plants and other multicellular organisms develop their distinctive three-dimensional shapes as they grow . This process—called morphogenesis—is influenced by many genes and involves communication between cells to control the ability of individual cells to divide and grow . The precise timing and location of e... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"computational",
"and",
"systems",
"biology",
"developmental",
"biology",
"tools",
"and",
"resources"
] | 2015 | MorphoGraphX: A platform for quantifying morphogenesis in 4D |
The 14th–18th century pandemic of Yersinia pestis caused devastating disease outbreaks in Europe for almost 400 years . The reasons for plague’s persistence and abrupt disappearance in Europe are poorly understood , but could have been due to either the presence of now-extinct plague foci in Europe itself , or successi... | A bacterium called Yersina pestis is responsible for numerous human outbreaks of plague throughout history . It is carried by rats and other rodents and can spread to humans causing what we conventionally refer to as plague . The most notorious of these plague outbreaks – the Black Death – claimed millions of lives in ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Material",
"and",
"methods"
] | [
"epidemiology",
"and",
"global",
"health",
"microbiology",
"and",
"infectious",
"disease"
] | 2016 | Eighteenth century Yersinia pestis genomes reveal the long-term persistence of an historical plague focus |
We perform a comprehensive integrative analysis of multiple structural MR-based brain features and find for the first-time strong evidence relating inter-individual brain structural variations to a wide range of demographic and behavioral variates across a large cohort of young healthy human volunteers . Our analyses r... | For years , scientists have tried to explain human behavior by measuring brain characteristics . During the first half of the 19th century , craniometry , the science of taking measurements of the skull , was a popular field of research and cognitive abilities as well as many behaviors were associated with different sk... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2019 | Inter-individual differences in human brain structure and morphology link to variation in demographics and behavior |
Mechanical loading , such as caused by exercise , stimulates bone formation by osteoblasts and increases bone strength , but the mechanisms are poorly understood . Osteocytes reside in bone matrix , sense changes in mechanical load , and produce signals that alter bone formation by osteoblasts . We report that the ion ... | Bone size and strength depend on physical activity . Increased forces on the skeleton , such as those that occur during exercise , trigger more bone formation and make bones stronger . Conversely , reduced forces , caused for example by the lack physical activity , cause bone loss and increase the risk of fractures . B... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2019 | Stimulation of Piezo1 by mechanical signals promotes bone anabolism |
How pancreatic β-cells acquire function in vivo is a long-standing mystery due to the lack of technology to visualize β-cell function in living animals . Here , we applied a high-resolution two-photon light-sheet microscope for the first in vivo imaging of Ca2+activity of every β-cell in Tg ( ins:Rcamp1 . 07 ) zebrafis... | When the amount of sugar in our body rises , specialised cells known as β-cells respond by releasing insulin , a hormone that acts on various organs to keep blood sugar levels within a healthy range . These cells cluster in small ‘islets’ inside our pancreas . If the number of working β-cells declines , diseases such a... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"stem",
"cells",
"and",
"regenerative",
"medicine",
"developmental",
"biology"
] | 2019 | In vivo imaging of β-cell function reveals glucose-mediated heterogeneity of β-cell functional development |
Transport of biologically active molecules across tight epithelial barriers is a major challenge preventing therapeutic peptides from oral drug delivery . Here , we identify a set of synthetic glycosphingolipids that harness the endogenous process of intracellular lipid-sorting to enable mucosal absorption of the incre... | To work properly , drugs need to be absorbed efficiently into the body . Medications that are injected directly into the bloodstream are often quickly transported to the organs or tissues they target . But injections are not always convenient , and many patients would instead prefer to swallow a pill or tablet . If a d... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cell",
"biology"
] | 2018 | Mucosal absorption of therapeutic peptides by harnessing the endogenous sorting of glycosphingolipids |
In many species , within-group conflict leads to immediate avoidance of potential aggressors or increases in affiliation , but no studies have investigated delayed post-conflict management behaviour . Here , we experimentally test that possibility using a wild but habituated population of dwarf mongooses ( Helogale par... | Social animals that live in groups often have disagreements over access to mates and food . Even fleeting in-group disputes can be costly , disrupting relationships , wasting time and energy , or causing injury if aggression escalates . So , much like humans , many social animals , including primates , birds and dogs ,... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"ecology",
"evolutionary",
"biology"
] | 2021 | Experimental evidence for delayed post-conflict management behaviour in wild dwarf mongooses |
The final identity of a differentiated neuron is determined by multiple signaling events , including activity dependent calcium transients . Non-canonical Frizzled2 ( Fz2 ) signaling generates calcium transients that determine neuronal polarity , neuronal migration , and synapse assembly in the developing vertebrate br... | The fruit fly Drosophila melanogaster is an aerial acrobat . These insects can suddenly change direction in less than one hundredth of a second , explaining why a moving fly can be so difficult to swat . To perform their aerial manoeuvres , the flies continually combine information from multiple senses , including visi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2015 | Maturation of a central brain flight circuit in Drosophila requires Fz2/Ca2+ signaling |
Understanding T cell function in vivo is of key importance for basic and translational immunology alike . To study T cells in vivo , we developed a new knock-in mouse line , which expresses a fusion protein of granzyme B , a key component of cytotoxic granules involved in T cell-mediated target cell-killing , and monom... | Cytotoxic , or killer , T cells are a key part of the immune system . They carry a lethal mixture of toxic chemicals , stored in packages called cytotoxic granules . Killer T cells inject the contents of these granules into infected , cancerous or otherwise foreign cells , forcing them to safely self-destruct . In test... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"tools",
"and",
"resources",
"immunology",
"and",
"inflammation"
] | 2020 | Studying the biology of cytotoxic T lymphocytes in vivo with a fluorescent granzyme B-mTFP knock-in mouse |
Unrelated genes establish head-to-tail polarity in embryos of different fly species , raising the question of how they evolve this function . We show that in moth flies ( Clogmia , Lutzomyia ) , a maternal transcript isoform of odd-paired ( Zic ) is localized in the anterior egg and adopted the role of anterior determi... | With very few exceptions , animals have ‘head’ and ‘tail’ ends that develop when they are an embryo . The genes involved in specifying these ends vary between species and even closely-related animals may use different genes for the same roles . For example , the products of two unrelated genes called bicoid in fruit fl... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"evolutionary",
"biology"
] | 2019 | Embryo polarity in moth flies and mosquitoes relies on distinct old genes with localized transcript isoforms |
Changes in cancer cell identity can alter malignant potential and therapeutic response . Loss of the pulmonary lineage specifier NKX2-1 augments the growth of KRAS-driven lung adenocarcinoma and causes pulmonary to gastric transdifferentiation . Here , we show that the transcription factors FoxA1 and FoxA2 are required... | Among all cancers , lung cancers cause the most deaths worldwide . There are many different types of lung cancer , each of which contain lung cancer cells that look different . As a general rule , lung cancer cells that look the most like healthy lung cells are the least aggressive . Cancer cells that take on the appea... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"cancer",
"biology"
] | 2018 | FoxA1 and FoxA2 drive gastric differentiation and suppress squamous identity in NKX2-1-negative lung cancer |
Reliably detecting unexpected sounds is important for environmental awareness and survival . By selectively reducing responses to frequently , but not rarely , occurring sounds , auditory cortical neurons are thought to enhance the brain's ability to detect unexpected events through stimulus-specific adaptation ( SSA )... | In everyday life , we are often exposed to a mix of different sounds . An essential task for our brain is to separate the important sounds from the unimportant ones . For example , stepping out onto a busy street , you may at first be very aware of the noise of traffic . Later , you may start to ignore the din and inst... | [
"Abstract",
"Introduction",
"Results",
"Discussion"
] | [
"neuroscience"
] | 2015 | Complementary control of sensory adaptation by two types of cortical interneurons |
Eukaryotic cells deploy autophagy to eliminate invading microbes . In turn , pathogens have evolved effector proteins to counteract antimicrobial autophagy . How adapted pathogens co-opt autophagy for their own benefit is poorly understood . The Irish famine pathogen Phytophthora infestans secretes the effector protein... | With its long filaments reaching deep inside its prey , the tiny fungi-like organism known as Phytophthora infestans has had a disproportionate impact on human history . Latching onto plants and feeding on their cells , it has caused large-scale starvation events such as the Irish or Highland potato famines . Many spec... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"plant",
"biology"
] | 2021 | An oomycete effector subverts host vesicle trafficking to channel starvation-induced autophagy to the pathogen interface |
RNA-binding proteins play myriad roles in regulating RNAs and RNA-mediated functions . In bacteria , the RNA chaperone Hfq is an important post-transcriptional gene regulator . Using live-cell super-resolution imaging , we can distinguish Hfq binding to different sizes of cellular RNAs . We demonstrate that under norma... | Messenger RNAs or mRNAs are molecules that the cell uses to transfer the information stored in the cell’s DNA so it can be used to make proteins . Bacteria can regulate their levels of mRNA molecules , and they can therefore control how many proteins are being made , by producing a different type of RNA called small re... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"microbiology",
"and",
"infectious",
"disease"
] | 2021 | Dynamic interactions between the RNA chaperone Hfq, small regulatory RNAs, and mRNAs in live bacterial cells |
Transmission of respiratory pathogens such as SARS-CoV-2 depends on patterns of contact and mixing across populations . Understanding this is crucial to predict pathogen spread and the effectiveness of control efforts . Most analyses of contact patterns to date have focused on high-income settings . Here , we conduct a... | Infectious diseases , particularly those caused by airborne pathogens like SARS-CoV-2 , spread by social contact , and understanding how people mix is critical in controlling outbreaks . To explore these patterns , researchers typically carry out large contact surveys . Participants are asked for personal information (... | [
"Abstract",
"Introduction",
"Materials",
"and",
"methods",
"Results",
"Discussion"
] | [
"epidemiology",
"and",
"global",
"health"
] | 2021 | Social contact patterns and implications for infectious disease transmission – a systematic review and meta-analysis of contact surveys |
Homeostatic regulation of the partial pressure of CO2 ( PCO2 ) is vital for life . Sensing of pH has been proposed as a sufficient proxy for determination of PCO2 and direct CO2-sensing largely discounted . Here we show that connexin 26 ( Cx26 ) hemichannels , causally linked to respiratory chemosensitivity , are direc... | A number of gaseous molecules , including nitric oxide and carbon monoxide , play important roles in many cellular processes by acting as signalling molecules . Surprisingly , however , it has long been assumed that carbon dioxide – a gaseous molecule that is produced during cellular metabolism – is not a signalling mo... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2013 | CO2 directly modulates connexin 26 by formation of carbamate bridges between subunits |
The chromatophore of purple bacteria is an intracellular spherical vesicle that exists in numerous copies in the cell and that efficiently converts sunlight into ATP synthesis , operating typically under low light conditions . Building on an atomic-level structural model of a low-light-adapted chromatophore vesicle fro... | Photosynthesis , or the conversion of light energy into chemical energy , is a process that powers almost all life on Earth . Plants and certain bacteria share similar processes to perform photosynthesis , though the purple bacterium Rhodobacter sphaeroides uses a photosynthetic system that is much less complex than th... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"physics",
"of",
"living",
"systems",
"computational",
"and",
"systems",
"biology"
] | 2016 | Overall energy conversion efficiency of a photosynthetic vesicle |
Many organisms lose the capacity to regenerate damaged tissues as they mature . Damaged Drosophila imaginal discs regenerate efficiently early in the third larval instar ( L3 ) but progressively lose this ability . This correlates with reduced damage-responsive expression of multiple genes , including the WNT genes win... | The ability of many animals to regenerate damaged tissues decreases as they age , for example , newborn mice can regenerate damaged heart tissue while older mice cannot . Researchers are trying to discover why older animals lose the ability to regenerate , which may help us to develop therapies that can regenerate dama... | [
"Abstract",
"Introduction",
"Results",
"Materials",
"and",
"methods"
] | [
"stem",
"cells",
"and",
"regenerative",
"medicine",
"cell",
"biology"
] | 2016 | Localized epigenetic silencing of a damage-activated WNT enhancer limits regeneration in mature Drosophila imaginal discs |
Rabex-5 and Rabaptin-5 function together to activate Rab5 and further promote early endosomal fusion in endocytosis . The Rabex-5 GEF activity is autoinhibited by the Rabex-5 CC domain ( Rabex-5CC ) and activated by the Rabaptin-5 C2-1 domain ( Rabaptin-5C21 ) with yet unknown mechanism . We report here the crystal str... | Cells need to allow various molecules to pass through the plasma membrane on their surface . Some molecules have to enter the cell , whereas others have to leave . Cells rely on a process called endocytosis to move large molecules into the cell . This involves part of the membrane engulfing the molecule to form a ‘bubb... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"structural",
"biology",
"and",
"molecular",
"biophysics"
] | 2014 | Molecular mechanism for Rabex-5 GEF activation by Rabaptin-5 |
We make choices based on the values of expected outcomes , informed by previous experience in similar settings . When the outcomes of our decisions consistently violate expectations , new learning is needed to maximize rewards . Yet not every surprising event indicates a meaningful change in the environment . Even when... | Nobody likes waiting – we opt for online shopping to avoid standing in lines , grow impatient in traffic , and often prefer restaurants that serve food quickly . When making decisions , humans and other animals try to maximize the benefits by weighing up the costs and rewards associated with a situation . Many regions ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2017 | Complementary contributions of basolateral amygdala and orbitofrontal cortex to value learning under uncertainty |
Changes in expression patterns may occur when organisms are presented with new environmental challenges , for example following migration or genetic changes . To elucidate the mechanisms by which the translational machinery adapts to such changes , we perturbed the tRNA pool of Saccharomyces cerevisiae by tRNA gene del... | Genes contain the blueprints for the proteins that are essential for countless biological functions and processes , and the path that leads from a particular gene to the corresponding protein is long and complex . The genetic information stored in the DNA must first be transcribed to produce a messenger RNA molecule , ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"evolutionary",
"biology",
"cell",
"biology"
] | 2013 | tRNA genes rapidly change in evolution to meet novel translational demands |
The prokaryotic CRISPR ( clustered regularly interspaced palindromic repeats ) -associated protein , Cas9 , has been widely adopted as a tool for editing , imaging , and regulating eukaryotic genomes . However , our understanding of how to select single-guide RNAs ( sgRNAs ) that mediate efficient Cas9 activity is inco... | Many bacteria have a type of immune system known as CRISPR that can target and cut foreign DNA to protect it against viruses . Recently , the CRISPR system was adapted to allow scientists to easily manipulate the genome of humans and many other organisms . However , unlike the loosely organized DNA found in bacteria , ... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"chromosomes",
"and",
"gene",
"expression",
"short",
"report"
] | 2016 | Nucleosomes impede Cas9 access to DNA in vivo and in vitro |
The vertebrate eye primordium consists of a pseudostratified neuroepithelium , the optic vesicle ( OV ) , in which cells acquire neural retina or retinal pigment epithelium ( RPE ) fates . As these fates arise , the OV assumes a cup shape , influenced by mechanical forces generated within the neural retina . Whether th... | Rounded eyeballs help to optimize vision – but how do they acquire their distinctive shape ? In animals with backbones , including humans , the eye begins to form early in development . A single layer of embryonic tissue called the optic vesicle reorganizes itself into a two-layered structure: a thin outer layer of cel... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"developmental",
"biology",
"neuroscience"
] | 2021 | Stretching of the retinal pigment epithelium contributes to zebrafish optic cup morphogenesis |
Within a single generation time a growing yeast cell imports ∼14 million ribosomal proteins ( r-proteins ) into the nucleus for ribosome production . After import , it is unclear how these intrinsically unstable and aggregation-prone proteins are targeted to the ribosome assembly site in the nucleolus . Here , we repor... | The production of a protein in a cell starts with a region of DNA being transcribed to produce a molecule of messenger RNA . A large molecular machine called ribosome then reads the information in the messenger RNA molecule to produce a protein . Ribosomes themselves are made of RNA and several different proteins calle... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"biochemistry",
"and",
"chemical",
"biology",
"cell",
"biology"
] | 2014 | A RanGTP-independent mechanism allows ribosomal protein nuclear import for ribosome assembly |
Bitter compounds elicit an aversive response . In Drosophila , bitter-sensitive taste neurons coexpress many members of the Gr family of taste receptors . However , the molecular logic of bitter signaling is unknown . We used an in vivo expression approach to analyze the logic of bitter taste signaling . Ectopic or ove... | Insects and other animals use their sense of taste to tell if their food is safe to eat . Plant toxins , for example , often have a bitter flavor that animals can detect and avoid . Fruit flies have many bitter-sensitive nerve cells , but it is not known how the receptors on these nerve cells signal the detection of bi... | [
"Abstract",
"Introduction",
"Results",
"Discussion",
"Materials",
"and",
"methods"
] | [
"neuroscience"
] | 2016 | Bitter taste receptors confer diverse functions to neurons |
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