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Acts as a transcriptional activator or repressor. Plays a pivotal role in regulating lineage-specific hematopoiesis by repressing ETS1-mediated transcription of erythroid-specific genes in myeloid cells. Required for monocytic, macrophage, podocyte and islet beta cell differentiation. Involved in renal tubule survival and F4/80 maturation. Activates the insulin and glucagon promoters. Together with PAX6, transactivates weakly the glucagon gene promoter through the G1 element. SUMO modification controls its transcriptional activity and ability to specify macrophage fate. Binds element G1 on the glucagon promoter (By similarity). Involved either as an oncogene or as a tumor suppressor, depending on the cell context.
Gene Name: | v-maf avian musculoaponeurotic fibrosarcoma oncogene homolog B |
Synonyms: | MAFB, KRML, Maf-B, MCTO, Transcription factor MafB |
Target Sequences: | NM_005461 NP_005452.2 Q9Y5Q3 |
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