DNA-binding protein RFX6 (RFX6)

Transcription factor required to lead islet cell differentiation during endocrine pancreas development. Especially required for the differentiation of 4 of those 5 islet cell types and for the production of insulin (PubMed:20148032, PubMed:25497100).

Not required for pancreatic PP (polypeptide- producing) cells differentiation. Acts downstream of NEUROG3 and modulates the transcription factors involved in beta-cell maturation and function, thereby restricting the expression of this beta-cell differentiation and specification genes, and thus the beta-cell destiny choice.