ALX homeobox protein 1 is a protein that in humans is encoded by the ALX1gene.[5][6][7]
Function
The specific function of this gene has yet to be determined in humans; however, in rodents, it is necessary for survival of the forebrain mesenchyme and may also be involved in development of the cervix. Mutations in the mouse gene lead to neural tube defects such as acrania and meroanencephaly.[7]
In Burmese cats, especially the lineage known as Contemporary Burmese, a deletion of four aminoacids in ALX1 is common. When heterozygous, the mutation causes brachycephaly; when homozygous it causes a fatal head malformation known as Burmese head defect.[8]
In Darwin's finches, inhabiting the Galapagos islands, ALX1 has been linked to the diversity of beak shapes.[9]
^Lamichhaney S, Berglund J, Almén MS, Maqbool K, Grabherr M, Martinez-Barrio A, Promerová M, Rubin CJ, Wang CZamani N, Grant BR, Webster MT, Andersson L (11 February 2015). "Evolution of Darwin's finches and their beaks revealed by genome sequencing". Nature. 518 (7539): 371–5. Bibcode:2015Natur.518..371L. doi:10.1038/nature14181. PMID25686609. S2CID4462253.
^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. Bibcode:2005Natur.437.1173R. doi:10.1038/nature04209. PMID16189514. S2CID4427026.
Zhao Q, Behringer RR, de Crombrugghe B (Jul 1996). "Prenatal folic acid treatment suppresses acrania and meroanencephaly in mice mutant for the Cart1 homeobox gene". Nature Genetics. 13 (3): 275–83. doi:10.1038/ng0796-275. PMID8673125. S2CID12341689.
Cai RL (Sep 1998). "Human CART1, a paired-class homeodomain protein, activates transcription through palindromic binding sites". Biochemical and Biophysical Research Communications. 250 (2): 305–11. doi:10.1006/bbrc.1998.9257. PMID9753625.
Qu S, Tucker SC, Zhao Q, deCrombrugghe B, Wisdom R (Jan 1999). "Physical and genetic interactions between Alx4 and Cart1". Development. 126 (2): 359–69. doi:10.1242/dev.126.2.359. PMID9847249.
Iioka T, Furukawa K, Yamaguchi A, Shindo H, Yamashita S, Tsukazaki T (Aug 2003). "P300/CBP acts as a coactivator to cartilage homeoprotein-1 (Cart1), paired-like homeoprotein, through acetylation of the conserved lysine residue adjacent to the homeodomain". Journal of Bone and Mineral Research. 18 (8): 1419–29. doi:10.1359/jbmr.2003.18.8.1419. PMID12929931. S2CID8125330.
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. Bibcode:2005Natur.437.1173R. doi:10.1038/nature04209. PMID16189514. S2CID4427026.