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c_uks4fp94piwj
Hbl, cytotoxin K (CytK) and Nhe are all putative causes. Both Hbl and Nhe are three-component cytotoxins composed of a binding component, B, and two lytic components, L1 and L2. All three subunits act synergically to cause hemolysis.
Bacillus haemolytic enterotoxin
c_92qtlp7ezje4
Maximal cytotoxicity of Nhe against epithelia is dependent on all three components. Nhe has haemolytic activity against erythrocytes from a variety of species.
Bacillus haemolytic enterotoxin
c_67bodigznavl
It is possible that the common structural and functional properties of these toxins indicate that the Hbl/Nhe and ClyA families of toxins constitute a superfamily of pore-forming cytotoxins. Haemolysin BL and non-haemolytic enterotoxin production are both influenced by pH and micro. == References ==
Bacillus haemolytic enterotoxin
c_pbngb802xj6j
In molecular biology, the Bcl-x interacting domain is a protein domain found in BAM, Bim and Bcl2-like protein 11. It is a long alpha helix, which is required for interaction with Bcl-x. == References ==
Bcl-x interacting domain
c_58lnhk1vw9x6
In molecular biology, the BmKK2 toxins are a family of scorpion toxins. They belong to the scorpion toxin subfamily alpha-KTx 14. They include a novel short-chain peptide from the Asian scorpion Mesobuthus martensii Karsch, a potassium channel blocker composed of 31 amino acid residues. The peptide adopts a classical a...
BmKK2 toxin
c_af64nfk9t1b7
BmKK2 selectively inhibits the delayed rectifier K+ current, but does not affect the fast transient K+ current.In comparison with typical short-chain scorpion toxins (e.g., CTX and NTX), the alpha helix is shorter and the beta-sheet element is smaller (each strand consists of only two residues). There is an alpha-mode ...
BmKK2 toxin
c_riyij6ogoe1u
In molecular biology, the BolA-like protein family consists of the morpho-protein BolA from Escherichia coli, the Fra2 protein from Saccharomyces cerevisiae, and various homologs. The BolA protein is a DNA-binding regulator; the Fra2 protein is an iron sulfur cluster protein that binds Grx3/4 and is involved in regulat...
BolA-like protein family
c_rthukvrb7phz
BolA is also induced by stress during early stages of growth and may have a general role in stress response. It has also been suggested that BolA can induce the transcription of penicillin binding proteins 6 and 5. == References ==
BolA-like protein family
c_qs05vmgxvfnu
In molecular biology, the Bowman–Birk protease inhibitor family of proteins consists of eukaryotic proteinase inhibitors, belonging to MEROPS inhibitor family I12, clan IF. They mainly inhibit serine peptidases of the S1 family, but also inhibit S3 peptidases.Members of this family have a duplicated structure and gener...
Bowman–Birk protease inhibitor
c_083anq6kx464
Proteins of the Bowman–Birk inhibitor family of serine proteinase inhibitors interact with the enzymes they inhibit via an exposed surface loop that adopts the canonical proteinase inhibitory conformation. The resulting noncovalent complex renders the proteinase inactive. This inhibition mechanism is common for the maj...
Bowman–Birk protease inhibitor
c_rtt6rnn5am1z
In molecular biology, the BsuBI/PstI restriction endonuclease family is a family of type II restriction endonucleases. It includes BsuBI and PstI. The enzymes of the BsuBI restriction/modification (R/M) system recognise the target sequence 5'CTGCAG and are functionally identical with those of the PstI R/M system. == Re...
BsuBI/PstI restriction endonuclease
c_am36ocaj79zm
In molecular biology, the Btk-type zinc finger or Btk motif (BM) is a conserved zinc-binding motif containing conserved cysteines and a histidine that is present in certain eukaryotic signalling proteins. The motif is named after Bruton's tyrosine kinase (Btk), an enzyme which is essential for B cell maturation in huma...
Btk-type zinc finger
c_iyqfqo2e9p7d
The N-terminal of the TH domain is highly conserved and known as the Btf motif, while the C-terminal region of the TH domain contains a proline-rich region (PRR). The Btk motif contains a conserved His and three Cys residues that form a zinc finger (although these differ from known zinc finger topologies), while PRRs a...
Btk-type zinc finger
c_z4xk8x7piq4l
A complete TH domain, containing both the Btk and PRR regions, has not been found outside the Tec family; however, the Btk motif on its own does occur in other proteins, usually C-terminal to a PH domain (note that although a Btk motif always occurs C-terminal to a PH domain, not all PH domains are followed by a Btk mo...
Btk-type zinc finger
c_g47geptk1llc
Mutations affecting Btk are the cause of X-linked agammaglobulinemia (XLA) in humans and X-linked immunodeficiency in mice. Mammalian Tec, Bmx, and Itk proteins, which are tyrosine protein kinases of the Tec subfamily.
Btk-type zinc finger
c_8av5djw1xk51
Drosophila tyrosine-protein kinase Btk29A, which is required for the development of proper ring canals and of male genitalia and required for adult survival. Mammalian Ras GTPase-activating proteins (RasGAP), which regulate the activation of inactive GDP-bound Ras by converting GDP to GTP. == References ==
Btk-type zinc finger
c_27391yprwj0j
In molecular biology, the BtpA protein family is a family of proteins which includes BtpA. BtpA appears to play a role in the stabilisation of photosystem I . It is an extrinsic membrane protein located on the cytoplasmic side of the thylakoid membrane. Homologs of BtpA are found in the Thermoproteota and "Euryarchaeot...
BtpA protein
c_930etmsex6r8
The Ycf4 protein is firmly associated with the thylakoid membrane, presumably through a transmembrane domain. Ycf4 co-fractionates with a protein complex larger than PSI upon sucrose density gradient centrifugation of solubilised thylakoids. The Ycf3 protein is loosely associated with the thylakoid membrane and can be ...
BtpA protein
c_nmm0jeojamwf
This suggests that Ycf3 is not part of a stable complex and that it probably interacts transiently with its partners. Ycf3 contains a number of tetratricopeptide repeats (TPR); TPR is a structural motif present in a wide range of proteins, which mediates protein-protein interactions. == References ==
BtpA protein
c_jbiwfwg1t0mz
In molecular biology, the Btz domain (CASC3/Barentsz eIF4AIII binding domain) is a protein domain found on CASC3 (cancer susceptibility candidate gene 3 protein) which is also known as Barentsz (Btz). CASC3 is a component of the EJC (exon junction complex) which is a complex that is involved in post-transcriptional reg...
Btz domain
c_j7i9fpomtowx
In molecular biology, the CAS/CSE protein family is a family of proteins which includes mammalian cellular apoptosis susceptibility (CAS) proteins and yeast chromosome-segregation protein, CSE1. CAS is involved in both cellular apoptosis and proliferation. Apoptosis is inhibited in CAS-depleted cells, while the express...
CAS/CSE protein family
c_8jclip9rcxx8
In the nucleus, CAS acts as a nuclear transport factor in the importin pathway. The importin pathway mediates the nuclear transport of several proteins that are necessary for mitosis and further progression. CAS is therefore thought to affect the cell cycle through its effect on the nuclear transport of these proteins.
CAS/CSE protein family
c_ase5o06nnhxb
Since apoptosis also requires the nuclear import of several proteins (such as P53 and transcription factors), it has been suggested that CAS also enables apoptosis by facilitating the nuclear import of at least a subset of these essential proteins.Members of the CAS/CSE family of proteins have two domains. An N-termina...
CAS/CSE protein family
c_rtatgdgqjjsc
In molecular biology, the CAT RNA-binding domain (Co-AntiTerminator RNA-binding domain) is a protein domain found at the amino terminus of a family of transcriptional antiterminator proteins. This domain forms a dimer in the crystal structure. Transcriptional antiterminators of the BglG/SacY family are regulatory prote...
CAT RNA-binding domain
c_e89tjy2jsr4l
In molecular biology, the CBS domain is a protein domain found in a range of proteins in all species from bacteria to humans. It was first identified as a conserved sequence region in 1997 and named after cystathionine beta synthase, one of the proteins it is found in. CBS domains are also found in a wide variety of ot...
CBS domain
c_1euoe6kj8zlq
In molecular biology, the CD20-like family of proteins includes the CD20 protein and the beta subunit of the high affinity receptor for IgE Fc, MS4A2. MS4A2 has a tetrameric structure consisting of a single IgE-binding alpha subunit, a single beta subunit, and two disulfide-linked gamma subunits. It has four putative t...
CD20-like family
c_zcqtmu167j3g
This family also includes LR8 like proteins from humans (TMEM176B), mice and rats. The function of the human LR8 protein is unknown although it is known to be strongly expressed in the lung fibroblasts. This family also includes sarcospan, a transmembrane component of dystrophin-associated glycoprotein.
CD20-like family
c_ly11nx0uasiv
Loss of the sarcoglycan complex and sarcospan alone is sufficient to cause muscular dystrophy. The role of the sarcoglycan complex and sarcospan is thought to be to strengthen the dystrophin axis connecting the basement membrane with the cytoskeleton. == References ==
CD20-like family
c_0ccz9ynlev8x
In molecular biology, the CDC48 N-terminal domain is a protein domain found in AAA ATPases including cell division protein 48 (CDC48), VCP-like ATPase and N-ethylmaleimide sensitive fusion protein. It is a substrate recognition domain which binds polypeptides, prevents protein aggregation, and catalyses refolding of pe...
CDC48 N-terminal domain
c_l88ujq1npudq
The carboxy-terminal subdomain (CDC48_2) forms a novel six-stranded beta-clam fold. Together these subdomains form a kidney-shaped structure, in close agreement with results from electron microscopy. CDC48_N is related to numerous proteins including prokaryotic transcription factors, metabolic enzymes, the protease cof...
CDC48 N-terminal domain
c_fcicz89w7jko
In molecular biology, the CFC domain (Cripto_Frl-1_Cryptic domain) is a protein domain found at the C-terminus of a number of proteins including Cripto (or teratocarcinoma-derived growth factor). It is structurally similar to the C-terminal extracellular portions of Jagged 1 and Jagged 2. CFC is approx 40-residues long...
CFC domain
c_vo7lyg9jc1ql
In molecular biology, the CHAP domain is a region between 110 and 140 amino acids that is found in proteins from bacteria, bacteriophages, archaea and eukaryotes of the family Trypanosomidae. The domain is named after the acronym cysteine, histidine-dependent amidohydrolases/peptidases. Many of these proteins are uncha...
CHAP domain
c_6tu4creymuwp
It has been suggested that CHAP domain containing proteins utilise a catalytic cysteine residue in a nucleophilic-attack mechanism.The CHAP domain contains two invariant residues, a cysteine and a histidine. These residues form part of the putative active site of CHAP domain containing proteins. Secondary structure pre...
CHAP domain
c_a3vz6s3j055w
A variety of bacterial autolysins. A Nocardia aerocolonigenes putative esterase. Streptococcus pneumoniae choline-binding protein D. Methanosarcina mazei protein MM2478, a putative chloride channel.
CHAP domain
c_3zw9tdu5vydk
Several phage-encoded peptidoglycan hydrolases. Cysteine peptidases belonging to MEROPS peptidase family C51 (D-alanyl-glycyl endopeptidase, clan CA). == References ==
CHAP domain
c_ofyky0mk84jh
In molecular biology, the CHB HEX N-terminal domain represents the N-terminal domain in chitobiases and beta-hexosaminidases. Chitobiases degrade chitin, which forms the exoskeleton in insects and crustaceans, and which is one of the most abundant polysaccharides on earth. Beta-hexosaminidases are composed of either a ...
CHB HEX N-terminal domain
c_flots291qlwy
HexB is structurally similar to chitobiase, consisting of a beta sandwich structure; this structure is similar to that found in the cellulose-binding domain of cellulase from Cellulomonas fimi. This domain may function as a carbohydrate binding module. == References ==
CHB HEX N-terminal domain
c_xvofz1z0xl44
In molecular biology, the CLP protease family is a family of serine peptidases belong to the MEROPS peptidase family S14 (ClpP endopeptidase family, clan SK). ClpP is an ATP-dependent protease that cleaves a number of proteins, such as casein and albumin. It exists as a heterodimer of ATP-binding regulatory A and catal...
CLP protease family
c_xusbe90zt66j
In molecular biology, the CRM domain is an approximately 100-amino acid RNA-binding domain. The name CRM (chloroplast RNA splicing and ribosome maturation) has been suggested to reflect the functions established for four characterised members of the family: Zea mays (Maize) CRS1, CAF1 and CAF2 proteins and the Escheric...
CRM domain
c_vxz4dnq6qo5c
It has been suggested that prokaryotic CRM proteins existed as ribosome-associated proteins prior to the divergence of archaea and bacteria, and that they were co-opted in the plant lineage as RNA binding modules by incorporation into diverse protein contexts. Plant CRM domains are predicted to reside not only in the c...
CRM domain
c_hgzwh65uek7v
The beta sheet face is basic, consistent with a role in RNA binding. Proximal to the basic beta sheet face is another moiety that could contribute to nucleic acid recognition. Connecting strand beta1 and helix alpha2 is a loop with a six amino acid motif, GxxG flanked by large aliphatic residues, within which one 'x' i...
CRM domain
c_lagktrr9axyh
GFP fused to a single-domain CRM protein from maize localises to the nucleolus, suggesting that an analogous activity may have been retained in plants. A CRM domain containing protein in plant chloroplasts has been shown to function in group I and II intron splicing. In vitro experiments with an isolated maize CRM doma...
CRM domain
c_fuzujabqbn7l
These and other results suggest that the CRM domain evolved in the context of ribosome function prior to the divergence of Archaea and Bacteria, that this function has been maintained in extant prokaryotes, and that the domain was recruited to serve as an RNA binding module during the evolution of plant genomes. YhbY h...
CRM domain
c_jrbrkzljo6rn
In molecular biology, the CRP domain is a protein domain consisting of a helix-turn-helix (HTH) motif. It is found at the C-terminus of numerous bacterial transcription regulatory proteins. These proteins bind DNA via the CRP domain.
Crp domain
c_w2yvvy9mew22
These proteins are very diverse, but for convenience may be grouped into subfamilies on the basis of sequence similarity. This family groups together a range of proteins, including ANR, CRP, CLP, CysR, FixK, Flp, FNR, FnrN, HlyX and NtcA. == References ==
Crp domain
c_2ncrbp6orns1
In molecular biology, the CUT domain (also known as ONECUT) is a DNA-binding motif which can bind independently or in cooperation with the homeodomain, which is often found downstream of the CUT domain. Proteins display two modes of DNA binding, which hinge on the homeodomain and on the linker that separates it from th...
CUT domain
c_gtge4ko9pi42
In molecular biology, the CVNH domain (CyanoVirin-N Homology domain) is a conserved protein domain. It is found in the sugar-binding antiviral protein cyanovirin-N (CVN) as well as proteins from filamentous ascomycetes and in the fern Ceratopteris richardii.Cyanovirin-N (CV-N) is an 11-kDa protein from the cyanobacteri...
CVNH domain
c_4m6lxymb78rh
The virucidal activity of CV-N against influenza virus is directed towards viral haemagglutinin. CV-N has a complex fold composed of a duplication of a tandem repeat of two homologous motifs comprising three-stranded beta sheet and beta hairpins. == References ==
CVNH domain
c_v17nigtv6ll0
In molecular biology, the Cbl TKB domain (tyrosine kinase binding domain), also known as the phosphotyrosine binding (PTB) domain is a conserved region found at the N-terminus of Cbl adaptor proteins. This N-terminal region is composed of three evolutionarily conserved domains: an N-terminal four-helix bundle domain, a...
Cbl TKB domain
c_l120qwlvrd0a
In molecular biology, the Cfr10I/Bse634I family of restriction endonucleases includes the type II restriction endonucleases Cfr10I and Bse634I. They exhibit a conserved tetrameric architecture that is of functional importance, wherein two dimers are arranged, back-to-back, with their putative DNA-binding clefts facing ...
Cfr10I/Bse634I
c_01bymoj32j3y
Each monomer is folded to form a compact alpha-beta structure, whose core is made up of a five-stranded mixed beta-sheet. The monomer may be split into separate N-terminal and C-terminal subdomains at a hinge located in helix alpha3. Both Cfr10I and Bse634I recognise the double-stranded sequence RCCGGY and cleave after...
Cfr10I/Bse634I
c_cnx3vgeed2vs
In molecular biology, the CodY protein family consists of several bacterial GTP-sensing transcriptional pleiotropic repressor CodY proteins. CodY has been found to repress the dipeptide transport operon (dpp) of Bacillus subtilis in nutrient-rich conditions. The CodY protein also has a repressor effect on many genes in...
CodY protein family
c_qarr93r2s3pk
In molecular biology, the Cofactor transferase family is a family of protein domains that includes biotin protein ligases, lipoate-protein ligases A, octanoyl-(acyl carrier protein):protein N-octanoyltransferases, and lipoyl-protein:protein N-lipoyltransferases. The metabolism of the cofactors Biotin and lipoic acid sh...
Cofactor transferase family
c_1sqjjeaa8itm
Each organism likely has only one BPL protein. Biotin attachment is a two step reaction that results in the formation of an amide linkage between the carboxyl group of biotin and the epsilon-amino group of the modified lysine. Biotin attachment is required for biotin biosynthesis and utilization of free biotin.Lipoate-...
Cofactor transferase family
c_r3tfdpm0j8ph
They are required for the utilization of free lipoic acid.Octanoyl-(acyl carrier protein):protein N-octanoyltransferases, or octanoyltransferases, are required for lipoic acid biosynthesis. They transfer octanoate from the acyl carrier protein (ACP), part of fatty acid biosynthesis, to the specific lysine residue of li...
Cofactor transferase family
c_g6rav2kyqeb9
They transfer lipoic acid or octanoate from lipoyl domains and transfer to other lipoyl domains. In Bacillus subtilis, the transfer is from the glycine cleavage system H protein, GcvH, to other lipoyl domains. This is because the octanoyltransferase of B. subtilis is specific for GcvH.
Cofactor transferase family
c_ix5djaf6dwpu
In molecular biology, the Cro repressor family is a family of repressor proteins in bacteriophage lambda that includes the Cro repressor. Bacteriophage lambda encodes two repressors: the Cro repressor that acts to turn off early gene transcription during the lytic cycle, and the lambda or cI repressor required to maint...
Cro repressor family
c_b93xk6inlcn2
The crystal structure of the lambda Cro repressor reveals a HTH DNA-binding protein with an alpha/beta fold that differs from other Cro family members, possibly by an evolutionary fold change. Most Cro proteins, such as Enterobacteria phage P22 Cro and Bacteriophage 434 Cro, have an all-alpha structure that is thought ...
Cro repressor family
c_c884zipa8q81
In molecular biology, the Cys/Met metabolism PLP-dependent enzyme family is a family of proteins including enzymes involved in cysteine and methionine metabolism which use PLP (pyridoxal-5'-phosphate) as a cofactor.
Cys/Met metabolism PLP-dependent enzyme family
c_fcuqtxq3sd4l
In molecular biology, the DEP domain (Dishevelled, Egl-10 and Pleckstrin domain) is a globular protein domain of about 80 amino acids that is found in over 50 proteins involved in G-protein signalling pathways. It was named after the three proteins it was initially found in: Dishevelled (Dsh and Dvl), which plays a key...
DEP domain
c_rmx4p9bdsbaa
It has been proposed that the DEP domain could play a selective role in targeting DEP domain-containing proteins to specific subcellular membranous sites, perhaps even to specific G protein-coupled signaling pathways. Nuclear magnetic resonance spectroscopy has revealed that the DEP domain comprises a three-helix bundl...
DEP domain
c_r5p9a6yg6dlv
In molecular biology, the DHH phosphatase family is a family of putative phosphoesterases. The family includes Drosophila prune protein and bacterial RecJ exonuclease. The RecJ protein of Escherichia coli plays an important role in a number of DNA repair and recombination pathways.
DHH phosphatase family
c_awynagirpkr5
RecJ catalyses processive degradation of single-stranded DNA in a 5'-to-3' direction. Sequences highly related to those encoding RecJ can be found in many of the eubacterial genomes sequenced to date. == References ==
DHH phosphatase family
c_vnbzowzvu2xp
In molecular biology, the DSS1/SEM1 protein family is a family of short acidic proteins which includes the 26S proteasome complex subunits SEM1 from Saccharomyces cerevisiae and Drosophila and DSS1 (SHFM1) in mammals. In Saccharomyces cerevisiae, SEM1 is a regulator of both exocyst function and pseudohyphal differentia...
DSS1/SEM1 protein family
c_047jf7r9fbb6
In molecular biology, the DinI-like protein family is a family of short proteins. The family includes DNA-damage-inducible protein I (DinI) and related proteins. The SOS response, a set of cellular phenomena exhibited by eubacteria, is initiated by various causes that include DNA damage-induced replication arrest, and ...
DinI-like protein family
c_ol6g4hwg0lz5
Biochemical and genetic studies indicated that DinI physically interacts with RecA to inhibit its co-protease activity. The structure of DinI is known. == References ==
DinI-like protein family
c_yzmvwj9ngvwb
In molecular biology, the DmpG-like communication domain is a protein domain found towards the C-terminal region of various aldolase enzymes. It consists of five alpha-helices, four of which form an antiparallel helical bundle that plugs the C terminus of the N-terminal TIM barrel domain. The communication domain is th...
DmpG-like communication domain
c_7m9wjmnsgmai
In molecular biology, the DpnII restriction endonuclease family is a family of restriction endonucleases which includes DpnII from Diplococcus pneumoniae. These enzymes recognise the double-stranded DNA unmethylated sequence GATC and cleave before G-1, where it encompasses the full length of the protein. == References ...
DpnII restriction endonuclease family
c_ytz3wy1xb0f9
In molecular biology, the DyP-type peroxidase family is a family of haem peroxidase enzymes. Haem peroxidases were originally divided into two superfamilies, namely, the animal peroxidases and the plant peroxidases (which are subdivided into class I, II and III), which include fungal (class II) and bacterial peroxidase...
DyP-type peroxidase family
c_yf3vgm5a11l8
However, the DyP family exhibits only low sequence similarity to classical fungal peroxidases, such as LiP and MnP, and does not contain the conserved proximal and distal histidines and an essential arginine found in other plant peroxidase superfamily members. DyP proteins have several characteristics that distinguish ...
DyP-type peroxidase family
c_a8souydcx2zz
Crystal structures of DyP family members reveal two domains, each one adopting a ferredoxin-like fold. The proteins consist of an N-terminal domain and a C-terminal domain likely to be related by a duplication of an ancestral gene, as inferred from the conserved topology of the domains. The haem iron is penta-coordinat...
DyP-type peroxidase family
c_xvvjh7mn3l8p
A conserved Asp most likely acts as a proton donor/acceptor and takes the place of the catalytic histidine used by plant peroxidases. This Asp substitution helps explain why the DyP family is active at low pH. == References ==
DyP-type peroxidase family
c_zp6l2o13hn36
In molecular biology, the Dymeclin protein family is a family of proteins which includes human Dymeclin. Dymeclin (Dyggve-Melchior-Clausen syndrome protein) contains a large number of leucine and isoleucine residues and a total of 17 repeated dileucine motifs. It is characteristically about 700 amino acids long and pre...
Dymeclin protein family
c_2jsnrlk3ou1k
It contains up to seven potential transmembrane domains separated by regions of low complexity. Functionally this protein might be involved in vesicle secretion or be an inter-cellular signalling protein or be a novel insulin receptor. == References ==
Dymeclin protein family
c_ts0kb0fczf5q
In molecular biology, the EAL domain is a conserved protein domain. It is found in diverse bacterial signalling proteins. It is named EAL after its conserved residues.
EAL domain
c_k2qcodpok44p
The EAL domain may function as a diguanylate phosphodiesterase. The domain contains many conserved acidic residues that could participate in metal binding and might form the phosphodiesterase active site. == References ==
EAL domain
c_m6ik3uara7v1
In molecular biology, the EF1 guanine nucleotide exchange domain is a protein domain found in the beta and delta chains of elongation factors from eukaryotes and archaea. Elongation factor EF1B (also known as EF-Ts or EF-1beta/gamma/delta) is a nucleotide exchange factor that is required to regenerate EF1A from its ina...
EF1 guanine nucleotide exchange domain
c_kehsw3fj22it
The beta and delta chains have exchange activity, which mainly resides in their homologous guanine nucleotide exchange domains, found in the C-terminal region of the peptides. Their N-terminal regions may be involved in interactions with the gamma chain (EF-1gamma). == References ==
EF1 guanine nucleotide exchange domain
c_lq8hii2hhv5k
In molecular biology, the ELFV dehydrogenase family of enzymes include glutamate, leucine, phenylalanine and valine dehydrogenases. These enzymes are structurally and functionally related. They contain a Gly-rich region containing a conserved Lys residue, which has been implicated in the catalytic activity, in each cas...
ELFV dehydrogenase
c_d72gfgd2b9mk
GluDH isozymes are generally involved with either ammonia assimilation or glutamate catabolism. Two separate enzymes are present in yeasts: the NADP-dependent enzyme, which catalyses the amination of alpha-ketoglutarate to L-glutamate; and the NAD-dependent enzyme, which catalyses the reverse reaction - this form links...
ELFV dehydrogenase
c_ysg8ygh799ut
The nicotinamide ring of the NAD+ cofactor binds deep in this cleft, which is thought to close during the hydride transfer step of the catalytic cycle. Phenylalanine dehydrogenase EC 1.4.1.20 (PheDH) is an NAD-dependent enzyme that catalyses the reversible deamidation of L-phenylalanine into phenyl-pyruvate.Valine dehy...
ELFV dehydrogenase
c_d37awqh4ju5g
In molecular biology, the EMI domain, first named after its presence in proteins of the EMILIN family, is a small cysteine-rich protein domain of around 75 amino acids. The EMI domain is most often found at the N terminus of metazoan extracellular proteins that are forming or are compatible with multimer formation. It ...
EMI domain
c_1mw6n2ehj6yh
Other key features of the EMI domain are the C-C-x-G- pattern, a hydrophobic position just preceding the first cysteine (Cys1) of the domain and a cluster of hydrophobic residues between Cys3 and Cys4. The EMI domain could be made of two sub-domains, the fold of the second one sharing similarities with the C-terminal s...
EMI domain
c_n02ng0q8w5df
Vertebrate Emu proteins, which could interact with several different extracellular matrix components and serve to connect and integrate the function of multiple partner molecules. Vertebrate beta-IG-H3. Vertebrate osteoblast-specific factor 2 (OSF-2).
EMI domain
c_14cbpi0in6ar
Mammalian NEU1/NG3 proteins. Drosophila midline fasciclin. Caenorhabditis elegans ced-1, a transmembrane receptor that mediates cell corpse engulfment. == References ==
EMI domain
c_nyujvrb8het4
In molecular biology, the EcoEI R protein C-terminal domain is a protein domain found at the C-terminus of both the R subunit of type I restriction enzymes and the Res subunit of type III restriction enzymes. The type I enzymes include EcoEI, which recognises 5'-GAGN(7)ATGC-3; the R protein (HsdR) is required for both ...
EcoEI R protein C-terminal domain
c_648vxa8ixtta
In molecular biology, the F-actin capping protein is a protein complex which binds in a calcium-independent manner to the fast-growing ends of actin filaments (barbed end), thereby blocking the exchange of subunits at these ends. Unlike gelsolin and severin this protein does not sever actin filaments. The F-actin cappi...
F-actin capping protein
c_rsk3kuopiy5m
Neither of the subunits shows sequence similarity to other filament-capping proteins. The alpha subunit is a protein of about 268 to 286 amino acid residues and the beta subunit is approximately 280 amino acids, their sequences are well conserved in eukaryotic species.The actin filament system, a prominent part of the ...
F-actin capping protein
c_q1ews8p9p4an
In molecular biology, the FAD dependent oxidoreductase family of proteins is a family of FAD dependent oxidoreductases. Members of this family include Glycerol-3-phosphate dehydrogenase EC 1.1.99.5, Sarcosine oxidase beta subunit EC 1.5.3.1, D-amino-acid dehydrogenase EC 1.4.99.1, D-aspartate oxidase EC 1.4.3.1. D-amin...
FAD dependent oxidoreductase family
c_o85hjybcwlzp
DAOs have been characterised and sequenced in fungi and vertebrates where they are known to be located in the peroxisomes. D-aspartate oxidase EC 1.4.3.1 (DASOX) is an enzyme, structurally related to DAO, which catalyses the same reaction but is active only toward dicarboxylic D-amino acids. In DAO, a conserved histidi...
FAD dependent oxidoreductase family
c_54dgxsqa4n9r
In molecular biology, the FERM domain (F for 4.1 protein, E for ezrin, R for radixin and M for moesin) is a widespread protein module involved in localising proteins to the plasma membrane. FERM domains are found in a number of cytoskeletal-associated proteins that associate with various proteins at the interface betwe...
FERM domain
c_oicvxysu1spa
In molecular biology, the FEZ-like protein family is a family of eukaryotic proteins thought to be involved in axonal outgrowth and fasciculation. The N-terminal regions of these sequences are less conserved than the C-terminal regions, and are highly acidic. The Caenorhabditis elegans homologue, UNC-76, may play struc...
FEZ-like protein
c_p9ua8f92721f
The C-terminal region probably participates in the association with the regulatory domain of PKC-zeta. The members of this family are predicted to form coiled-coil structures which may interact with members of the RhoA family of signalling proteins, but are not thought to contain other characteristic protein motifs. Ce...
FEZ-like protein
c_a9bgopvh45ry
In molecular biology, the FHIPEP protein family (Flagellar/Hr/Invasion Proteins Export Pore family)consists of a number of proteins that constitute the type III secretion (or signal peptide-independent) pathway apparatus. This mechanism translocates proteins lacking an N-terminal signal peptide across the cell membrane...
FHIPEP protein family
c_z69fx6xfx6fi
An FHIPEP protein is located within the inner membrane, although it is unknown which component it constitutes. FHIPEP proteins have all about 700 amino acid residues.
FHIPEP protein family
c_e4fh3txhr1p1
Within the sequence, the N terminus is highly conserved and hydrophobic, suggesting that this terminus is embedded within the membrane, with 6-8 transmembrane (TM) domains, while the C terminus is less conserved and appears to be devoid of TM regions. It is possible that members of the FHIPEP family serve as pores for ...
FHIPEP protein family
c_ym3l7ohqmvrq
In molecular biology, the FLYWCH zinc finger is a zinc finger domain. It is found in a number of eukaryotic proteins. FLYWCH is a C2H2-type zinc finger characterised by five conserved hydrophobic residues, containing the conserved sequence motif: F/Y-X(n)-L-X(n)-F/Y-X(n)-WXCX(6-12)CX(17-22)HXH where X indicates any ami...
FLYWCH zinc finger
c_sl5vc058iii4
This domain was first characterised in Drosophila modifier of mdg4 proteins, Mod(mgd4), putative chromatin modulators involved in higher order chromatin domains. Mod(mdg4) proteins share a common N-terminal BTB/POZ domain, but differ in their C-terminal region, most containing C-terminal FLYWCH zinc finger motifs. The ...
FLYWCH zinc finger
c_jzjrk5awugb2
In molecular biology, the Fic/DOC protein family is a family of proteins which catalyzes the post-translational modification of proteins using phosphate-containing compound as a substrate. Fic domain proteins typically use ATP as a co-factor, but in some cases GTP or UTP is used. Post-translational modification perform...
Fic/DOC protein family
c_nxp8d3in50ns
In molecular biology, the GA module, or protein G-related albumin-binding module, is a protein domain which occurs on the surface of numerous Gram-positive bacterial pathogens. Protein G of group C and G Streptococci interacts with the constant region of IgG and with human serum albumin. The GA module is composed of a ...
GA module