Biology:VAX1
 Generic protein structure example |
Ventral anterior homeobox 1 is a protein that in humans is encoded by the VAX1 gene.[1][2][3]
Function
This gene appears to influence the development in humans of the forebrain. It is also present in mice and xenopus frogs, which suggests a long evolutionary history, and in those organisms its expression is confined to the forebrain, optic and olfactory areas.[4]
VAX1 gene is a transcription factor that has a homeodomain located in the 100-159 amino acid position and an Ala–rich region located in 216-253 amino acid position of the gene. Expression studies in mice show that it is expressed in the palate, coloboma in the visual system, and the basal telencephalon, optic stalk, and visual eye fields where it is expressed along with the Shh and Bmp4 genes.[4][5][6]
Clinical significance
Mice with homozygous VAX1 mutations have been reported to display craniofacial malformations including cleft palate.[7]
Genome Wide Association Studies (GWAS) reported significant associations between non-syndromic clefts and SNPs in the VAX1 gene.[8][9] Replication studies have confirmed these associations in different population groups[10][11]
References
- ↑ "Vax1 is a novel homeobox-containing gene expressed in the developing anterior ventral forebrain". Development 125 (14): 2599–610. Aug 1998. doi:10.1242/dev.125.14.2599. PMID 9636075.
- ↑ "A homeobox gene, vax2, controls the patterning of the eye dorsoventral axis". Proc Natl Acad Sci U S A 96 (19): 10729–34. Oct 1999. doi:10.1073/pnas.96.19.10729. PMID 10485894. Bibcode: 1999PNAS...9610729B.
- ↑ "Entrez Gene: VAX1 ventral anterior homeobox 1". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=11023.
- ↑ 4.0 4.1 "Vax1 is a novel homeobox-containing gene expressed in the developing anterior ventral forebrain". Development 125 (14): 2599–610. July 1998. doi:10.1242/dev.125.14.2599. PMID 9636075.
- ↑ "Sonic hedgehog is involved in formation of the ventral optic cup by limiting Bmp4 expression to the dorsal domain". Mech. Dev. 127 (1–2): 62–72. 2010. doi:10.1016/j.mod.2009.10.006. PMID 19854269.
- ↑ "The homeodomain protein Vax1 is required for axon guidance and major tract formation in the developing forebrain". Genes Dev. 13 (23): 3092–105. December 1999. doi:10.1101/gad.13.23.3092. PMID 10601035.
- ↑ "Vax1, a novel homeobox-containing gene, directs development of the basal forebrain and visual system". Genes Dev. 13 (23): 3106–14. December 1999. doi:10.1101/gad.13.23.3106. PMID 10601036.
- ↑ "Genome-wide association study identifies two susceptibility loci for nonsyndromic cleft lip with or without cleft palate". Nat. Genet. 42 (1): 24–6. January 2010. doi:10.1038/ng.506. PMID 20023658.
- ↑ "A genome-wide association study of cleft lip with and without cleft palate identifies risk variants near MAFB and ABCA4". Nat. Genet. 42 (6): 525–9. June 2010. doi:10.1038/ng.580. PMID 20436469.
- ↑ "Susceptibility locus for non-syndromic cleft lip with or without cleft palate on chromosome 10q25 confers risk in Estonian patients". Eur. J. Oral Sci. 118 (3): 317–9. June 2010. doi:10.1111/j.1600-0722.2010.00741.x. PMID 20572868.
- ↑ "Genetic risk factors for nonsyndromic cleft lip with or without cleft palate in a Mesoamerican population: Evidence for IRF6 and variants at 8q24 and 10q25". Birth Defects Res. A 88 (7): 535–7. July 2010. doi:10.1002/bdra.20689. PMID 20564431.
Further reading
- "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. 2004. doi:10.1101/gr.2596504. PMID 15489334.
- "The DNA sequence and comparative analysis of human chromosome 10". Nature 429 (6990): 375–81. 2004. doi:10.1038/nature02462. PMID 15164054. Bibcode: 2004Natur.429..375D.
- "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. 2004. doi:10.1038/ng1285. PMID 14702039.
- "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. 2003. doi:10.1073/pnas.242603899. PMID 12477932. Bibcode: 2002PNAS...9916899M.
- "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Res. 6 (9): 791–806. 1997. doi:10.1101/gr.6.9.791. PMID 8889548.
External links
- VAX1 human gene location in the UCSC Genome Browser.
- VAX1 human gene details in the UCSC Genome Browser.
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