Human Molecular Genetics Advance Access published online on November 21, 2005
Human Molecular Genetics, doi:10.1093/hmg/ddi420
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1 McGill University and Genome Quebec Innovation Centre, Room 7105, 740 Dr. Penfield Avenue, Montreal, Qc H3A 1A4, Canada
* To whom correspondence should be addressed. Inter-individual variation in gene expression has proven to be in part governed by genetic determinants, which may be trans- or cis-acting. The underlying cause of cis-acting regulatory variation has been identified in only a handful of the hundreds of genes shown to display differential allelic expression. In this report, we describe a systematic effort to map common cis-acting variants in sixty-four genes, using association methods in HapMap samples. We identified sixteen loci (25%), each of which harbours common haplotypes that affect total expression of a gene, and a further seventeen loci (27%) with evidence of haplotypes affecting relative allelic expression in heterozygote samples. Our survey suggests that detailed mapping of allele-specific in vivo expression will provide a rich source of regulatory SNPs or haplotypes that should be given high priority in association studies of human phenotypes.
Received September 1, 2005
Revised November 4, 2005
Accepted November 4, 2005
Article
Mapping common regulatory variants to human haplotypes
Tomi Pastinen 1,
Bing Ge 1,
Scott Gurd 1,
Tiffany Gaudin 1,
Carole Dore 1,
Mathieu Lemire 1,
Pierre Lepage 1,
Eef Harmsen 1,
and
Thomas J. Hudson 1 *
Thomas J. Hudson, E-mail: tom.hudson{at}mcgill.ca
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