Cancer Protein Description

This report provides a detailed description of a selected cancer protein with information collected from various sources, including UniProt, the Wellcome Trust Sanger Institute’s Catalogue of Somatic Mutations in Cancer (COSMIC), and the Atlas of Genetics and Cytogenetics in Oncology and Haematology.


Protein Name: MAF
Gene Name: MAF
Protein Full Name: Transcription factor Maf
Alias: Proto-oncogene c-maf; Transcription factor Maf; V-maf musculoaponeurotic fibrosarcoma oncogene; V-maf musculoaponeurotic fibrosarcoma oncogene homologue
Mass (Da): 41961
Number AA: 373
UniProt ID: O75444; Q71A33
Locus ID: 4094
COSMIC ID: MAF
Gene location on chromosome: 16q23.1
Cancer protein type: OP/TSP
Effect of cancer mutation on protein: GAIN
Effect of active protein on cancer: MIXED
Number of cancer specimens: 20484
Percent of cancer specimens with mutations: 0.27
Deregulated in translocations: t(14;16)(q32;q23): no fusion protein, overexpression of MAF
Transduced into viral genome: AS42 sarcoma virus - Chicken
Normal role description: MAF is a b-ZIP transcription factor of the AP-1 super-family, that forms homo- and heterodimers nand plays a critical role in lens development by regulating the expression of crystallins. Increases expression of IL4 in Th2 cells and the susceptibility of T cells to apoptosis by interacting with MYB and decreasing BCL2 expression. Involved in initial chondrocyte terminal differentiation. Overexpression found in multiple myeloma, due to a translocation, and in angioimmunoblastic T cell lymphoma. Suggested to be an oncogene. However tumour suppressor activity has been observed in different tissues.


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