Replication analysis identifies TYK2 as a multiple sclerosis susceptibility factor.
Replication analysis identifies TYK2 as a multiple sclerosis susceptibility factor.
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DOI:
10.1038/ejhg.2009.41
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发表时间:
2009-10
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In a recent genome-wide association study (GWAS) based on 12,374 non-synonymous single nucleotide polymorphisms we identified a number of candidate multiple sclerosis susceptibility genes. Here we describe the extended analysis of 17 of these loci performed using an additional 4,234 patients, 2,983 controls and 2,053 trio families. In the final analysis combining all available data, we found that evidence for association was substantially increased for one of the 17 loci, rs34536443 from the TYK2 gene (p=2.7 × 10−06, OR = 1.32 (1.17–1.47)). This SNP results in an amino acid substitution (proline to alanine) in the kinase domain of TYK2 which is predicted to influence the levels of phosphorylation and therefore activity of the protein and so is likely to have a functional role in multiple sclerosis.
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