PITX1

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Identifiers
Aliases
External IDs	GeneCards: [1]
Orthologs
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a
Wikidata
View/Edit Human

paired-like homeodomain 1 is a protein that in humans is encoded by the PITX1 gene.

Function

This gene encodes a member of the RIEG/PITX homeobox family, which is in the bicoid class of homeodomain proteins. Members of this family are involved in organ development and left-right asymmetry. This protein acts as a transcriptional regulator involved in basal and hormone-regulated activity of prolactin.

Clinical relevance

Mutations in this gene have been associated with autism and polydactyly in humans.

Genomic rearrangements at the PITX1 locus are associated with Liebenberg syndrome.

Interactions

PITX1 has been shown to interact with Pituitary-specific positive transcription factor 1.

Further reading

• Szeto DP, Ryan AK, O'Connell SM, Rosenfeld MG (Jul 1996). "P-OTX: a PIT-1-interacting homeodomain factor expressed during anterior pituitary gland development". Proceedings of the National Academy of Sciences of the United States of America. 93 (15): 7706–10. doi:10.1073/pnas.93.15.7706. PMC 38811. PMID 8755540.
• Shang J, Luo Y, Clayton DA (Jun 1997). "Backfoot is a novel homeobox gene expressed in the mesenchyme of developing hind limb". Developmental Dynamics. 209 (2): 242–53. doi:10.1002/(SICI)1097-0177(199706)209:2<242::AID-AJA10>3.0.CO;2-0. PMID 9186059.
• Poulin G, Turgeon B, Drouin J (Nov 1997). "NeuroD1/beta2 contributes to cell-specific transcription of the proopiomelanocortin gene". Molecular and Cellular Biology. 17 (11): 6673–82. doi:10.1128/mcb.17.11.6673. PMC 232521. PMID 9343431.
• Tremblay JJ, Drouin J (Apr 1999). "Egr-1 is a downstream effector of GnRH and synergizes by direct interaction with Ptx1 and SF-1 to enhance luteinizing hormone beta gene transcription". Molecular and Cellular Biology. 19 (4): 2567–76. doi:10.1128/mcb.19.4.2567. PMC 84049. PMID 10082522.
• Tremblay JJ, Marcil A, Gauthier Y, Drouin J (Jun 1999). "Ptx1 regulates SF-1 activity by an interaction that mimics the role of the ligand-binding domain". The EMBO Journal. 18 (12): 3431–41. doi:10.1093/emboj/18.12.3431. PMC 1171422. PMID 10369682.
• Pellegrini-Bouiller I, Manrique C, Gunz G, Grino M, Zamora AJ, Figarella-Branger D, Grisoli F, Jaquet P, Enjalbert A (Jun 1999). "Expression of the members of the Ptx family of transcription factors in human pituitary adenomas". The Journal of Clinical Endocrinology and Metabolism. 84 (6): 2212–20. doi:10.1210/jc.84.6.2212. PMID 10372733.
• Tahara S, Kurotani R, Sanno N, Takumi I, Yoshimura S, Osamura RY, Teramoto A (Oct 2000). "Expression of pituitary homeo box 1 (Ptx1) in human non-neoplastic pituitaries and pituitary adenomas". Modern Pathology. 13 (10): 1097–108. doi:10.1038/modpathol.3880204. PMID 11048804.
• Quentien MH, Manfroid I, Moncet D, Gunz G, Muller M, Grino M, Enjalbert A, Pellegrini I (Nov 2002). "Pitx factors are involved in basal and hormone-regulated activity of the human prolactin promoter". The Journal of Biological Chemistry. 277 (46): 44408–16. doi:10.1074/jbc.M207824200. PMID 12223489.
• Ghosh AK, Majumder M, Steele R, Ray R, Ray RB (Feb 2003). "Modulation of interferon expression by hepatitis C virus NS5A protein and human homeodomain protein PTX1". Virology. 306 (1): 51–9. doi:10.1016/S0042-6822(02)00029-6. PMID 12620797.
• Hiroi N, Kino T, Bassett M, Rainey WE, Phung M, Abu-Asab M, Fojo T, Briata P, Chrousos GP, Bornstein SR (May 2003). "Pituitary homeobox factor 1, a novel transcription factor in the adrenal regulating steroid 11beta-hydroxylase". Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Métabolisme. 35 (5): 273–8. doi:10.1055/s-2003-41301. PMID 12915995.
• Kolfschoten IG, van Leeuwen B, Berns K, Mullenders J, Beijersbergen RL, Bernards R, Voorhoeve PM, Agami R (Jun 2005). "A genetic screen identifies PITX1 as a suppressor of RAS activity and tumorigenicity". Cell. 121 (6): 849–58. doi:10.1016/j.cell.2005.04.017. PMID 15960973.
• Rual JF, Venkatesan K, Hao T, Hirozane-Kishikawa T, Dricot A, Li N, Berriz GF, Gibbons FD, Dreze M, Ayivi-Guedehoussou N, Klitgord N, Simon C, Boxem M, Milstein S, Rosenberg J, Goldberg DS, Zhang LV, Wong SL, Franklin G, Li S, Albala JS, Lim J, Fraughton C, Llamosas E, Cevik S, Bex C, Lamesch P, Sikorski RS, Vandenhaute J, Zoghbi HY, Smolyar A, Bosak S, Sequerra R, Doucette-Stamm L, Cusick ME, Hill DE, Roth FP, Vidal M (Oct 2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. doi:10.1038/nature04209. PMID 16189514.
• Lord RV, Brabender J, Wickramasinghe K, DeMeester SR, Holscher A, Schneider PM, Danenberg PV, DeMeester TR (Nov 2005). "Increased CDX2 and decreased PITX1 homeobox gene expression in Barrett's esophagus and Barrett's-associated adenocarcinoma". Surgery. 138 (5): 924–31. doi:10.1016/j.surg.2005.05.007. PMID 16291394.
• Olsen JV, Blagoev B, Gnad F, Macek B, Kumar C, Mortensen P, Mann M (Nov 2006). "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks". Cell. 127 (3): 635–48. doi:10.1016/j.cell.2006.09.026. PMID 17081983.
• Picard C, Azeddine B, Moldovan F, Martel-Pelletier J, Moreau A (Sep 2007). "New emerging role of pitx1 transcription factor in osteoarthritis pathogenesis". Clinical Orthopaedics and Related Research. 462: 59–66. doi:10.1097/BLO.0b013e3180d09d9c. PMID 17549029.
• Qi DL, Ohhira T, Fujisaki C, Inoue T, Ohta T, Osaki M, Ohshiro E, Seko T, Aoki S, Oshimura M, Kugoh H (Apr 2011). "Identification of PITX1 as a TERT suppressor gene located on human chromosome 5". Molecular and Cellular Biology. 31 (8): 1624–36. doi:10.1128/MCB.00470-10. PMC 3126332. PMID 21300782.

External links

• PITX1+protein,+human at the US National Library of Medicine Medical Subject Headings (MeSH)

This article incorporates text from the United States National Library of Medicine, which is in the public domain.