PITX1

PITX1
Identifiers
Aliases	PITX1, BFT, CCF, LBNBG, POTX, PTX1, paired like homeodomain 1
External IDs	OMIM: 602149 MGI: 107374 HomoloGene: 20584 GeneCards: PITX1
Gene location (Human)
Chr.	Chromosome 5 (human)[1]
End	135,034,813 bp[1]
Gene location (Mouse)
Chr.	Chromosome 13 (mouse)[2]
End	55,836,192 bp[2]
RNA expression pattern
	; ;
	More reference expression data
Gene ontology
Molecular function	• DNA binding; • sequence-specific DNA binding; • RNA polymerase II transcription factor binding; • GO:0001077, GO:0001212, GO:0001213, GO:0001211, GO:0001205 DNA-binding transcription activator activity, RNA polymerase II-specific; • GO:0000980 RNA polymerase II cis-regulatory region sequence-specific DNA binding; • GO:0001948 protein binding; • GO:0001131, GO:0001151, GO:0001130, GO:0001204 DNA-binding transcription factor activity; • GO:0001200, GO:0001133, GO:0001201 DNA-binding transcription factor activity, RNA polymerase II-specific;
Cellular component	• cytoplasm; • transcription regulator complex; • nucleolus; • cell nucleus;
Biological process	• skeletal system development; • pituitary gland development; • regulation of transcription, DNA-templated; • anatomical structure morphogenesis; • transcription from RNA polymerase II promoter; • hindlimb morphogenesis; • transcription, DNA-templated; • multicellular organism development; • cartilage development; • myoblast fate commitment; • negative regulation of transcription, DNA-templated; • branchiomeric skeletal muscle development; • positive regulation of transcription from RNA polymerase II promoter; • embryonic hindlimb morphogenesis;
	Sources:Amigo / QuickGO
Orthologs
	5307
	18740
	ENSG00000069011
	ENSMUSG00000021506
	P78337
	P70314
	NM_002653
	NM_011097
	NP_002644
	NP_035227
	Wikidata
View/Edit Human	View/Edit Mouse

Paired-like homeodomain 1 is a protein that in humans is encoded by the PITX1 gene.[5][6][7]

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.[7]

Clinical relevance

Mutations in this gene have been associated with autism,[8] club foot[9] and polydactyly[10] in humans.

Genetic basis of pathologies

Genomic rearrangements at the PITX1 locus are associated with Liebenberg syndrome.[11] In PITX1 Liebenberg is associated with a translocation or deletions, which cause insert promoter groups into the PITX1 locus.[11] A missense mutation within the PITX1 locus is associated with the development of autosomal dominant clubfoot.[9]

Interactions

PITX1 has been shown to interact with Pituitary-specific positive transcription factor 1.[12]

References

GRCh38: Ensembl release 89: ENSG00000069011 - Ensembl, May 2017
GRCm38: Ensembl release 89: ENSMUSG00000021506 - Ensembl, May 2017
"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.
Crawford MJ, Lanctôt C, Tremblay JJ, Jenkins N, Gilbert D, Copeland N, Beatty B, Drouin J (1997). "Human and murine PTX1/Ptx1 gene maps to the region for Treacher Collins syndrome". Mammalian Genome. 8 (11): 841–5. CiteSeerX 10.1.1.326.9619. doi:10.1007/s003359900589. PMID 9337397. S2CID 8557603.
Shang J, Li X, Ring HZ, Clayton DA, Francke U (February 1997). "Backfoot, a novel homeobox gene, maps to human chromosome 5 (BFT) and mouse chromosome 13 (Bft)". Genomics. 40 (1): 108–13. doi:10.1006/geno.1996.4558. PMID 9070926.
"Entrez Gene: PITX1 paired-like homeodomain transcription factor 1".
Philippi A, Tores F, Carayol J, Rousseau F, Letexier M, Roschmann E, et al. (December 2007). "Association of autism with polymorphisms in the paired-like homeodomain transcription factor 1 (PITX1) on chromosome 5q31: a candidate gene analysis". BMC Medical Genetics. 8: 74. doi:10.1186/1471-2350-8-74. PMC 2222245. PMID 18053270.
Alvarado DM, McCall K, Aferol H, Silva MJ, Garbow JR, Spees WM, et al. (October 2011). "Pitx1 haploinsufficiency causes clubfoot in humans and a clubfoot-like phenotype in mice". Human Molecular Genetics. 20 (20): 3943–52. doi:10.1093/hmg/ddr313. PMC 3177645. PMID 21775501.
Klopocki E, Kähler C, Foulds N, Shah H, Joseph B, Vogel H, et al. (June 2012). "Deletions in PITX1 cause a spectrum of lower-limb malformations including mirror-image polydactyly". European Journal of Human Genetics. 20 (6): 705–8. doi:10.1038/ejhg.2011.264. PMC 3355260. PMID 22258522.
Spielmann M, Brancati F, Krawitz PM, Robinson PN, Ibrahim DM, Franke M, et al. (October 2012). "Homeotic arm-to-leg transformation associated with genomic rearrangements at the PITX1 locus". American Journal of Human Genetics. 91 (4): 629–35. doi:10.1016/j.ajhg.2012.08.014. PMC 3484647. PMID 23022097.
Szeto DP, Ryan AK, O'Connell SM, Rosenfeld MG (July 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. Bibcode:1996PNAS...93.7706S. doi:10.1073/pnas.93.15.7706. PMC 38811. PMID 8755540.

External links

- PITX1+protein,+human at the US National Library of Medicine Medical Subject Headings (MeSH)
- http://omim.org/entry/602149 at OMIM, holds the most up to date information on PITX1.
- https://ghr.nlm.nih.gov/gene/PITX1 at the NIH, has a summary on the effects of PITX1 mutations.

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

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[refGRCh38Ensembl-1] GRCh38: Ensembl release 89: ENSG00000069011 - Ensembl, May 2017

[refGRCm38Ensembl-2] GRCm38: Ensembl release 89: ENSMUSG00000021506 - Ensembl, May 2017

[3] "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[4] "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[pmid9337397-5] Crawford MJ, Lanctôt C, Tremblay JJ, Jenkins N, Gilbert D, Copeland N, Beatty B, Drouin J (1997). "Human and murine PTX1/Ptx1 gene maps to the region for Treacher Collins syndrome". Mammalian Genome. 8 (11): 841–5. CiteSeerX 10.1.1.326.9619. doi:10.1007/s003359900589. PMID 9337397. S2CID 8557603.

[pmid9070926-6] Shang J, Li X, Ring HZ, Clayton DA, Francke U (February 1997). "Backfoot, a novel homeobox gene, maps to human chromosome 5 (BFT) and mouse chromosome 13 (Bft)". Genomics. 40 (1): 108–13. doi:10.1006/geno.1996.4558. PMID 9070926.

[entrez-7] "Entrez Gene: PITX1 paired-like homeodomain transcription factor 1".

[8] Philippi A, Tores F, Carayol J, Rousseau F, Letexier M, Roschmann E, et al. (December 2007). "Association of autism with polymorphisms in the paired-like homeodomain transcription factor 1 (PITX1) on chromosome 5q31: a candidate gene analysis". BMC Medical Genetics. 8: 74. doi:10.1186/1471-2350-8-74. PMC 2222245. PMID 18053270.

[Alvarado_2011-9] Alvarado DM, McCall K, Aferol H, Silva MJ, Garbow JR, Spees WM, et al. (October 2011). "Pitx1 haploinsufficiency causes clubfoot in humans and a clubfoot-like phenotype in mice". Human Molecular Genetics. 20 (20): 3943–52. doi:10.1093/hmg/ddr313. PMC 3177645. PMID 21775501.

[pmid.222585222-10] Klopocki E, Kähler C, Foulds N, Shah H, Joseph B, Vogel H, et al. (June 2012). "Deletions in PITX1 cause a spectrum of lower-limb malformations including mirror-image polydactyly". European Journal of Human Genetics. 20 (6): 705–8. doi:10.1038/ejhg.2011.264. PMC 3355260. PMID 22258522.

[Spielmann_2012-11] Spielmann M, Brancati F, Krawitz PM, Robinson PN, Ibrahim DM, Franke M, et al. (October 2012). "Homeotic arm-to-leg transformation associated with genomic rearrangements at the PITX1 locus". American Journal of Human Genetics. 91 (4): 629–35. doi:10.1016/j.ajhg.2012.08.014. PMC 3484647. PMID 23022097.

[pmid8755540-12] Szeto DP, Ryan AK, O'Connell SM, Rosenfeld MG (July 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. Bibcode:1996PNAS...93.7706S. doi:10.1073/pnas.93.15.7706. PMC 38811. PMID 8755540.