NP_001026974.1
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NCBI GenBank Nucleotide #
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UniProt Primary Accession #
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UniProt Secondary Accession #
UniProt Related Accession #
NCBI Official Full Name
transcription factor Maf isoform b
NCBI Official Synonym Full Names
v-maf avian musculoaponeurotic fibrosarcoma oncogene homolog
NCBI Official Synonym Symbols
NCBI Protein Information
transcription factor Maf; c-maf proto-oncogene; proto-oncogene c-Maf; T lymphocyte c-maf long form; Avian musculoaponeurotic fibrosarcoma (MAF) protooncogene
UniProt Protein Name
Transcription factor Maf
UniProt Synonym Protein Names
Proto-oncogene c-Maf; V-maf musculoaponeurotic fibrosarcoma oncogene homolog
UniProt Entry Name
MAF_HUMAN
NCBI Summary for MAF
The protein encoded by this gene is a DNA-binding, leucine zipper-containing transcription factor that acts as a homodimer or as a heterodimer. Depending on the binding site and binding partner, the encoded protein can be a transcriptional activator or repressor. This protein plays a role in the regulation of several cellular processes, including embryonic lens fiber cell development, increased T-cell susceptibility to apoptosis, and chondrocyte terminal differentiation. Defects in this gene are a cause of juvenile-onset pulverulent cataract as well as congenital cerulean cataract 4 (CCA4). Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2010]
UniProt Comments for MAF
MAF: Acts as a transcriptional activator or repressor. Involved in embryonic lens fiber cell development. Recruits the transcriptional coactivators CREBBP and/or EP300 to crystallin promoters leading to up-regulation of crystallin gene during lens fiber cell differentiation. Activates the expression of IL4 in T helper 2 (Th2) cells. Increases T-cell susceptibility to apoptosis by interacting with MYB and decreasing BCL2 expression. Together with PAX6, transactivates strongly the glucagon gene promoter through the G1 element. Activates transcription of the CD13 proximal promoter in endothelial cells. Represses transcription of the CD13 promoter in early stages of myelopoiesis by affecting the ETS1 and MYB cooperative interaction. Involved in the initial chondrocyte terminal differentiation and the disappearance of hypertrophic chondrocytes during endochondral bone development. Binds to the sequence 5'-[GT]G[GC]N[GT]AGNN-3' in the L7 promoter. Binds to the T-MARE (Maf response element) sites of lens-specific alpha- and beta-crystallin gene promoters. Binds element G1 on the glucagon promoter. Binds an AT-rich region adjacent to the TGC motif (atypical Maf response element) in the CD13 proximal promoter in endothelial cells. When overexpressed, represses anti-oxidant response element (ARE)- mediated transcription. Involved either as an oncogene or as a tumor suppressor, depending on the cell context. Binds to the ARE sites of detoxifying enzyme gene promoters. Homodimer or heterodimer with other bHLH-Zip transcription factors. Binds DNA as a homodimer or as a heterodimer. Heterotetramer of two MAF and two USF2. Interacts with PAX6; the interaction is direct. Interacts with MYB; interaction takes place weakly in normal T-cells and increases in T-cells following stimulation through the TCR engagement. Interacts with MYB; the ternary complex formed with MYB and the CD13 promoter is regulated in response to differentiating signals. Interacts with USF2; the interaction inhibits its DNA-binding activity on the L7 promoter. Interacts with CREBBP, EP300 and ETS1. Up-regulated with tert-butyl hydroquinone (t-BHQ). Expressed in endothelial cells. Belongs to the bZIP family. Maf subfamily. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: DNA-binding; Tumor suppressor; Transcription factor; Oncoprotein; Cell development/differentiation
Chromosomal Location of Human Ortholog: 16q22-q23
Cellular Component: cytoplasm; nucleus; chromatin
Molecular Function: sequence-specific DNA binding
Biological Process: transcription from RNA polymerase II promoter; cytokine production; positive regulation of transcription from RNA polymerase II promoter; regulation of chondrocyte differentiation; negative regulation of transcription from RNA polymerase II promoter; cell development; inner ear development
Disease: Cataract 21, Multiple Types; Ayme-gripp Syndrome
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Products associated with anti-MAF antibody
Pathways associated with anti-MAF antibody
Diseases associated with anti-MAF antibody
Organs/Tissues associated with anti-MAF antibody
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