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Haplotype and linkage disequilibrium analysis of the CRMP1 and EVC genes.

Abstract
In this report, we present the haplotype and linkage disequilibrium (LD) pattern in the Collapsin Response Mediator Protein 1 (CRMP1) and Ellis-van Creveld syndrome (EVC) gene region. We genotyped eight different single nucleotide polymorphisms (SNPs) in the CRMP1 and EVC genes in 90 control individuals of diverse ethnicity. The minor allele frequencies ranged from 3.3-49.4%, with most having a frequency >25%. A total of 37 haplotypes were derived from these eight polymorphisms, with only one haplotype having a frequency >10%. Pairwise LD analysis showed a weak but significant LD between markers located about 243 kb apart in this region. The LD was significant between markers spaced about 208 kb apart in EVC, whereas no LD was found between a pair of markers located about 5 kb apart in CRMP1. However, in general, LD correlated with the distance between loci. The CRMP1 and EVC genes are located near WFS1, the Wolfram syndrome type 1 gene, in which mutations also cause low frequency sensorineural hearing loss (LFSNHL). The haplotypes obtained from these polymorphisms will be useful to track the segregation of phenotypes in families with Ellis-van Creveld syndrome, Weyers acrodental dysostosis, LFSNHL and Wolfram syndrome type 1.
AuthorsTheru A Sivakumaran, Marci M Lesperance
JournalInternational journal of molecular medicine (Int J Mol Med) Vol. 14 Issue 5 Pg. 903-7 (Nov 2004) ISSN: 1107-3756 [Print] Greece
PMID15492864 (Publication Type: Journal Article)
Chemical References
  • CRMP1 protein, human
  • DNA Primers
  • EVC protein, human
  • Nerve Tissue Proteins
  • Proteins
Topics
  • Base Sequence
  • DNA Primers
  • Genetic Variation
  • Haplotypes (genetics)
  • Hearing Loss, Sensorineural (genetics)
  • Humans
  • Linkage Disequilibrium
  • Nerve Tissue Proteins (genetics)
  • Polymorphism, Single Nucleotide (genetics)
  • Proteins (genetics)
  • Wolfram Syndrome (genetics)

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