======= MAF =======
== Gene Information ==
* **Official Symbol**: MAF
* **Official Name**: MAF bZIP transcription factor
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=4094|4094]]
* **UniProt**: [[https://www.uniprot.org/uniprot/O75444|O75444]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=MAF&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20MAF|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/177075|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: 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 Summary**: 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]NCTCAGNN-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 (By similarity). 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. {ECO:0000250, ECO:0000269|PubMed:12149651, ECO:0000269|PubMed:14998494, ECO:0000269|PubMed:15007382, ECO:0000269|PubMed:16247450, ECO:0000269|PubMed:19143053}.
|bZIP Maf|
|Maf N|
|lens fiber cell differentiation|
|regulation of chondrocyte differentiation|
|regulation of cartilage development|
|lens development in camera-type eye|
|chromatin|
|cytokine production|
|inner ear development|
|ear development|
|camera-type eye development|
|eye development|
|visual system development|
|sensory system development|
|sequence-specific DNA binding|
|DNA-binding transcription activator activity, RNA polymerase II-specific|
|transcription by RNA polymerase II|
|RNA polymerase II proximal promoter sequence-specific DNA binding|
|sensory organ development|
|transcription, DNA-templated|
|nucleic acid-templated transcription|
|RNA biosynthetic process|
|DNA-binding transcription factor activity|
|epithelial cell differentiation|
|negative regulation of transcription by RNA polymerase II|
|nucleobase-containing compound biosynthetic process|
|epithelium development|
|heterocycle biosynthetic process|
|aromatic compound biosynthetic process|
|negative regulation of transcription, DNA-templated|
|positive regulation of transcription by RNA polymerase II|
|negative regulation of nucleic acid-templated transcription|
|negative regulation of RNA biosynthetic process|
|organic cyclic compound biosynthetic process|
|negative regulation of RNA metabolic process|
|negative regulation of cellular macromolecule biosynthetic process|
|negative regulation of nucleobase-containing compound metabolic process|
|negative regulation of macromolecule biosynthetic process|
|negative regulation of cellular biosynthetic process|
|positive regulation of transcription, DNA-templated|
|negative regulation of biosynthetic process|
|DNA-binding transcription factor activity, RNA polymerase II-specific|
|cellular nitrogen compound biosynthetic process|
|positive regulation of nucleic acid-templated transcription|
|positive regulation of RNA biosynthetic process|
|cell development|
|RNA metabolic process|
|cellular macromolecule biosynthetic process|
|negative regulation of gene expression|
|positive regulation of RNA metabolic process|
|tissue development|
|macromolecule biosynthetic process|
|regulation of cell differentiation|
|positive regulation of nucleobase-containing compound metabolic process|
|positive regulation of macromolecule biosynthetic process|
|positive regulation of cellular biosynthetic process|
|positive regulation of gene expression|
|gene expression|
|positive regulation of biosynthetic process|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp243|S-trityl-L-cysteine 0.5μM R05 exp243]]|1.79|
No correlation found to any other genes in chemogenomics.
Global Fraction of Cell Lines Where Essential: 5/739
^Tissue^Fraction Of Cell Lines Where Essential^
|1290807.0|0/1|
|909776.0|0/1|
|bile duct|0/28|
|blood|0/28|
|bone|0/26|
|breast|0/33|
|central nervous system|0/56|
|cervix|0/4|
|colorectal|0/17|
|esophagus|0/13|
|fibroblast|0/1|
|gastric|0/16|
|kidney|0/21|
|liver|0/20|
|lung|0/75|
|lymphocyte|0/16|
|ovary|0/26|
|pancreas|0/24|
|peripheral nervous system|0/16|
|plasma cell|4/15|
|prostate|0/1|
|skin|0/24|
|soft tissue|0/9|
|thyroid|0/2|
|upper aerodigestive|0/22|
|urinary tract|0/29|
|uterus|0/5|
== Essentiality in NALM6 ==
* **Essentiality Rank**: 4287
* **Expression level (log2 read counts)**: -0.75
{{:chemogenomics:nalm6 dist.png?nolink |}}