T-box transcription factor TBX19 is aprotein that in humans is encoded by theTBX19gene.[5]
This gene is a member of a phylogenetically conserved family of genes that share a common DNA-binding domain, theT-box. T-box genes encodetranscription factors involved in the regulation of developmental processes. This gene is the human ortholog of mouse Tbx19/Tpit gene. Studies in mouse show that Tpit protein is present only in the two pituitary pro-opiomelanocortin (POMC)-expressing lineages, the corticotrophs and melanotrophs.
The Tpit gene is responsible for a neonatal form of acth deficiency and hypocortisolism.[6]
Mutations in the human ortholog were found in patients with isolated deficiency of pituitary POMC-derived ACTH, suggesting an essential role for this gene in differentiation of the pituitary POMC lineage.[7]
^"Human PubMed Reference:".National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:".National Center for Biotechnology Information, U.S. National Library of Medicine.
^Yi CH, Terrett JA, Li QY, Ellington K, Packham EA, Armstrong-Buisseret L, McClure P, Slingsby T, Brook JD (Mar 1999). "Identification, mapping, and phylogenomic analysis of four new human members of the T-box gene family: EOMES, TBX6, TBX18, and TBX19".Genomics.55 (1):10–20.doi:10.1006/geno.1998.5632.PMID9888994.
