MAFA (gene)

Transcription factor MafA is a protein that in humans is encoded by the "MAFA" gene. It is a member of the Maf family of transcription factors.
MAFA assists in insulin regulation.
An in vivo study on mice proved MafA binds to the promoter in an insulin gene to regulate insulin transcription in response to serum glucose levels. MafA is a β cell-specific activator, which differentiates it from other transcription factors involved with insulin gene expression. It helps regulate the β cells involved with insulin secretion primarily by maintaining β cell metabolism. The amount of MafA in the β cells is regulated by levels of glucose and oxidative stress.
Interactions.
MafA (gene) has been shown to interact with NEUROD1 and Pdx1. MafA works with Pdx1 to activate the insulin gene.