islet/duodenum homeobox-1, insulin promoter factor 1, homeodomain transcription factor, glucose-sensitive factor, PDX-1, IUF-1, insulin upstream factor 1, PAGEN1, IDX-1, pancreas/duodenum homeobox protein 1, PDX1, somatostatin-transactivating factor 1, IUF1, pancreatic-duodenal homeobox factor 1, somatostatin transcription factor 1, MODY4, IPF-1, STF-1, GSF, IPF1, pancreatic and duodenal homeobox 1