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Activating Transcription Factor 2
Activating transcription factor 2, also known as ATF2, is a protein that, in humans, is encoded by the ''ATF2'' gene. Function This gene encodes a transcription factor that is a member of the leucine zipper family of DNA-binding proteins. This protein binds to the cAMP-responsive element (CRE), an octameric palindrome. The protein forms a homodimer or heterodimer with c-Jun. The protein is also a histone acetyltransferase (HAT) that specifically acetylates histones H2B and H4 in vitro; thus, it may represent a class of sequence-specific factors that activate transcription by direct effects on chromatin components. Additional transcript variants have been identified but their biological validity has not been determined. The gene atf2 is located at human chromosome 2q32. The protein ATF-2 has 505 amino acids. Studies in mice indicate a role for ATF-2 in the development of nervous system and the skeleton. ATF-2 is normally activated in response to signals that converge on stress ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding into a specific 3D structure that determines its activity. A linear chain of amino acid residues is called a polypeptide. A protein contains at least one long polypeptide. Short polypeptides, containing less than 20–30 residues, are rarely considered to be proteins and are commonly called peptides. The individual amino acid residues are bonded together by peptide bonds and adjacent amino acid residues. The sequence of amino acid residue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Activating Transcription Factor
Activating transcription factor, ATF, is a group of bZIP transcription factors, which act as homodimers or heterodimers with a range of other bZIP factors. First, they have been described as members of the CREB/ATF family, whereas it turned out later that some of them might be more similar to AP-1-like factors such as c-Jun or c-Fos. In general, ATFs are known to respond to extracellular signals and this suggests an important role that they have in maintaining homeostasis. Some of these ATFs, such as ATF3, ATF4, and ATF6 are known to play a role in stress responses. Another example of ATFs function would be ATFx that can suppress apoptosis. Genes include ATF1, ATF2, ATF3, ATF4, ATF5, ATF6, ATF7 Cyclic AMP-dependent transcription factor ATF-7 is a protein that in humans is encoded by the ''ATF7'' gene. Homonym In 2001, Peters et al. published a paper showing that ATF-7, a Novel bZIP Protein, interacts with PTP4A1. This ATF-7 is actu ..., ATFx. References External links ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UBE2I
SUMO-conjugating enzyme UBC9 is an enzyme that in humans is encoded by the ''UBE2I'' gene. It is also sometimes referred to as "ubiquitin conjugating enzyme E2I" or "ubiquitin carrier protein 9", even though these names do not accurately describe its function. Expression Four alternatively spliced transcript variants encoding the same protein have been found for this gene. Function The UBC9 protein encoded by the UBE2I gene constitutes a core machinery in the cell's sumoylation pathway. Sumoylation is a process in which a Small Ubiquitin-like MOdifier (SUMO) is covalently attached to other proteins in order to modify their behaviour. For example, sumoylation may affect a protein's localization in the cell, its ability to interact with other proteins or DNA. UBC9 performs the third step in the sumoylation life cycle: the conjugation step. When SUMO protein precursors are first expressed, they first undergo a maturation step in which the four C-terminal amino acids are rem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RUVBL2
RuvB-like 2 (E. coli), also known as RUVBL2, is a human gene coding for a protein belonging to the AAA+ family of proteins. Function This gene encodes the second human homologue of the bacterial RuvB gene. Bacterial RuvB protein is a DNA helicase essential for homologous recombination and DNA double-strand break repair. However, the evidence for whether RUVBL2 has DNA helicase activity is contradictory. This gene is physically linked to the CGB/LHB gene cluster on chromosome 19q13.3, and is very close (55 nt) to the LHB gene, in the opposite orientation. Interactions RUVBL2 has been shown to interact with RuvB-like 1 RuvB-like 1 (E. coli), also known as RUVBL1 and TIP49, is a human gene. RUVBL1 can form a hexamer. The hexamer can form a dodecamer with RUVBL2 protein. Possesses single-stranded DNA-stimulated ATPase and ATP-dependent DNA helicase (3' to 5') activ ... and Activating transcription factor 2. References Further reading * * * * * * * * * * * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NCOA6
Nuclear receptor coactivator 6 is a protein that in humans is encoded by the ''NCOA6'' gene. Function The protein encoded by this gene is a transcriptional coactivator that can interact with nuclear hormone receptors to enhance their transcriptional activator functions. The encoded protein has been shown to be involved in the hormone-dependent coactivation of several receptors, including prostanoid, retinoid, vitamin D3, thyroid hormone, and steroid receptors. The encoded protein may also act as a general coactivator since it has been shown to interact with some basal transcription factors, histone acetyltransferases, and methyltransferases. Interactions NCOA6 has been shown to interact with: * ASCL2 and * Activating transcription factor 2, * Androgen receptor, * CREB-binding protein, * DNA-PKcs, * E2F1, * EP300, * Estrogen receptor alpha, * Estrogen receptor beta, * HBXIP, * HIST2H3C, * HSF1, * Ku70, * Ku80, * Liver X receptor beta, * MLL3, * RBBP5, * Reti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mothers Against Decapentaplegic Homolog 3
Mothers against decapentaplegic homolog 3 also known as SMAD family member 3 or SMAD3 is a protein that in humans is encoded by the SMAD3 gene. SMAD3 is a member of the SMAD family of proteins. It acts as a mediator of the signals initiated by the transforming growth factor beta (TGF-β) superfamily of cytokines, which regulate cell proliferation, differentiation and death. Based on its essential role in TGF beta signaling pathway, SMAD3 has been related with tumor growth in cancer development. Gene The human SMAD3 gene is located on chromosome 15 on the cytogenic band at 15q22.33. The gene is composed of 9 exons over 129,339 base pairs. It is one of several human homologues of a gene that was originally discovered in the fruit fly ''Drosophila melanogaster''. The expression of SMAD3 has been related to the mitogen-activated protein kinase (MAPK/ERK pathway), particularly to the activity of mitogen-activated protein kinase kinase-1 (MEK1). Studies have demonstrated that inhi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MAPK8
Mitogen-activated protein kinase 8 (also known as JNK1) is a ubiquitous enzyme that in humans is encoded by the ''MAPK8'' gene. Function The protein encoded by this gene is a member of the MAP kinase and JNK family. MAP kinases act as an integration point for multiple biochemical signals, and are involved in a wide variety of cellular processes such as proliferation, differentiation, transcription regulation and development. This kinase is activated by various cell stimuli, and targets specific transcription factors, and thus mediates immediate-early gene expression in response to cell stimuli. The activation of this kinase by tumor-necrosis factor alpha (TNF-alpha) is found to be required for TNF-alpha-induced apoptosis. This kinase is also involved in UV radiation-induced apoptosis, which is thought to be related to the cytochrome c-mediated cell death pathway. Studies of the mouse counterpart of this gene suggested that this kinase play a key role in T cell proliferation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MAPK14
Mitogen-activated protein kinase 14, also called p38-α, is an enzyme that in humans is encoded by the ''MAPK14'' gene. MAPK14 encodes p38α mitogen-activated protein kinase (MAPK) which is the prototypic member of the p38 MAPK family. p38 MAPKs are also known as stress-activated serine/threonine-specific kinases (SAPKs). In addition to MAPK14 for p38α MAPK, the p38 MAPK family has three additional members, including MAPK11, MAPK12 and MAPK13 which encodes p38β MAPK, p38γ MAPK and p38δ MAPK isoforms, respectively. p38α MAPK was originally identified as a tyrosine phosphorylated protein detected in activated immune cell macrophages with an essential role in inflammatory cytokine induction, such as Tumor Necrotic Factor α (TNFα). However, p38α MAPK mediated kinase activity has been implicated in many tissues beyond immune systems. p38α MAPK is mainly activated through MAPK kinase kinase cascades and exerts its biological function via downstream substrate phosphorylati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JDP2 (gene)
Jun dimerization protein 2 (JUNDM2) is a protein that in humans is encoded by the ''JDP2'' gene. The Jun dimerization protein is a member of the AP-1 family of transcription factors. JDP 2 was found by a Sos-recruitment system, to dimerize with c-Jun to repress AP-1-mediated activation. It was later identified by the yeast-two hybrid system to bind to activating transcription factor 2 (ATF2) to repress ATF-mediated transcriptional activation. JDP2 regulates 12-O-tetradecanoylphorbol-13-acetate (TPA) response element (TRE)- and cAMP-responsive element (CRE)-dependent transcription. The JDP2 gene is located on human chromosome 14q24.3 (46.4 kb, 75,427,715 bp to 75,474,111 bp) and mouse chromosome 12 (39 kb, 85,599,105 bp to 85,639,878 bp), which is located at about 250 kbp in the Fos-JDP2-BATF locus. Alternative splicing of JDP2 generates at least two isoforms. The protein JDP2 has 163 amino acids, belongs to the family of basic leucine zipper (bZIP), and shows high homology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CSNK2A2
Casein kinase II subunit alpha' is an enzyme that in humans is encoded by the ''CSNK2A2'' gene. Interactions CSNK2A2 has been shown to interact with over 160 different substrates. CSNK2A2 has been shown to interact with: * Activating transcription factor 2, * ATF1, * C-Fos, * CREB binding protein, * CSNK2B, * FGF1, * Nucleolin, * PIN1, * PTEN, and * RELA Transcription factor p65 also known as nuclear factor NF-kappa-B p65 subunit is a protein that in humans is encoded by the ''RELA'' gene. RELA, also known as p65, is a REL-associated protein involved in NF-κB heterodimer formation, nuclear tran .... References External links * * Further reading * * {{gene-16-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CREB Binding Protein
Cyclic adenosine monophosphate Response Element Binding protein Binding Protein (CREB-binding protein), also known as CREBBP or CBP or KAT3A, is a coactivator encoded by the ''CREBBP'' gene in humans, located on chromosome 16p13.3. CBP has intrinsic acetyltransferase functions; it is able to add acetyl groups to both transcription factors as well as histone lysines, the latter of which has been shown to alter chromatin structure making genes more accessible for transcription. This relatively unique acetyltransferase activity is also seen in another transcription enzyme, EP300 (p300). Together, they are known as the p300-CBP coactivator family and are known to associate with more than 16,000 genes in humans; however, while these proteins share many structural features, emerging evidence suggests that these two co-activators may promote transcription of genes with different biological functions. For example, CBP alone has been implicated in a wide variety of pathophysiologies includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
