The protein encoded by this gene is a transcriptional activator of several genes, including insulin, somatostatin, glucokinase, islet amyloid polypeptide, and glucose transporter type 2. The encoded nuclear protein is involved in the early development of the pancreas and plays a major role in glucose-dependent regulation of insulin gene expression. Defects in this gene are a cause of pancreatic agenesis, which can lead to early-onset insulin-dependent diabetes mellitus (NIDDM), as well as maturity onset diabetes of the young type 4 (MODY4).
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Protein Aliases: DLDBP; Glucose-sensitive factor; GSF; IDX-1; Insulin promoter factor 1; insulin promoter factor 1, homeodomain transcription factor; insulin promotor factor 1; Insulin upstream factor 1; IPF-1; Islet/duodenum homeobox 1; Islet/duodenum homeobox-1; IUF-1; Pancreas/duodenum homeobox protein 1; pancreatic and duodenal homeobox gene 1; pancreatic-duodenal homeobox factor 1; PDHX; PDX-1; somatostatin transactivating factor 1; somatostatin transcription factor 1; Somatostatin-transactivating factor 1; STF-1
Gene Aliases: GSF; IDX-1; Idx1; IPF-1; IPF1; IUF1; MODY4; PAGEN1; PDX-1; PDX1; STF-1; STF1