FOXA2

FOXA2, also known as forkhead box protein A2, has alternative names including HNF3B and TCF3B. FOXA2 is a member of the forkhead transcription factor family, characterized by its highly conserved winged helix domain, which allows it to bind to DNA sequences in the promoter regions of target genes as a monomer. FOXA2's interaction with chromatin regulates gene expression by altering local chromatin structure, earning it the title of "pioneer factor."
FOXA2 plays a crucial role in various biological processes, including embryonic development, cell differentiation, and disease progression. It also regulates the expression of liver function genes, such as plasma proteins, apoproteins, coagulation factors, and key metabolic enzymes involved in glucose, fatty acid, and amino acid metabolism, contributing to liver development, organ formation, metabolism, and homeostasis maintenance. Abnormal expression of FOXA2 is associated with multiple diseases, including liver cancer, lung cancer, pancreatic cancer, stomach cancer, thyroid cancer, and colorectal cancer.