PMID- 10644443 OWN - NLM STAT- MEDLINE DCOM- 20000302 LR - 20081121 IS - 0888-7543 (Print) IS - 0888-7543 (Linking) VI - 62 IP - 3 DP - 1999 Dec 15 TI - The human BARX2 gene: genomic structure, chromosomal localization, and single nucleotide polymorphisms. PG - 456-9 AB - The BARX genes 1 and 2 are Bar class homeobox genes expressed in craniofacial structures during development. In this report, we present the genomic structure, chromosomal localization, and polymorphic markers in BARX2. The gene has four exons, ranging in size from 85 to 1099 bp. BARX2 is localized on human chromosome 11q25, as determined by radiation hybrid mapping. In the mouse, Barx2 is coexpressed with Pitx2 in several tissues. Based on the coexpression, BARX2 was assumed to be a candidate gene for those cases of Rieger syndrome that cannot be associated with mutations of PITX2. Mutations in PITX2 cause some cases of Rieger syndrome, an autosomal dominant disorder affecting eyes, teeth, and umbilicus. DNA from Rieger patients was subjected to single-strand conformation polymorphism screening of the BARX2 coding region. Three single nucleotide polymorphisms were found in a normal population, although no etiologic mutations were detectable in over 100 cases of Rieger syndrome or in individuals with related ocular disorders. CI - Copyright 1999 Academic Press. FAU - Hjalt, T A AU - Hjalt TA AD - Department of Pediatrics, University of Iowa, 140 EMRB, Iowa City, Iowa 52242, USA. FAU - Murray, J C AU - Murray JC LA - eng SI - GENBANK/AF171219 SI - GENBANK/AF171220 SI - GENBANK/AF171221 SI - GENBANK/AF171222 SI - GENBANK/AH008405 GR - DE08559-10/DE/NIDCR NIH HHS/United States GR - EY-12384/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Genomics JT - Genomics JID - 8800135 RN - 0 (BARX2 protein, human) RN - 0 (Homeodomain Proteins) SB - IM MH - Alleles MH - Anterior Chamber/abnormalities MH - Chromosomes, Human, Pair 11/*genetics MH - Craniofacial Abnormalities/genetics MH - Exons/genetics MH - Eye Abnormalities/genetics MH - Gene Frequency MH - Homeodomain Proteins/*genetics MH - Humans MH - Introns/genetics MH - Molecular Sequence Data MH - Physical Chromosome Mapping MH - Point Mutation/*genetics MH - Polymerase Chain Reaction MH - Polymorphism, Genetic/*genetics MH - Polymorphism, Single-Stranded Conformational MH - Promoter Regions, Genetic/genetics MH - Sequence Analysis, DNA MH - Syndrome EDAT- 2000/01/25 09:00 MHDA- 2000/03/04 09:00 CRDT- 2000/01/25 09:00 PHST- 2000/01/25 09:00 [pubmed] PHST- 2000/03/04 09:00 [medline] PHST- 2000/01/25 09:00 [entrez] AID - 10.1006/geno.1999.6037 [doi] AID - S0888-7543(99)96037-8 [pii] PST - ppublish SO - Genomics. 1999 Dec 15;62(3):456-9. doi: 10.1006/geno.1999.6037.