Tag SNP, tagging SNP
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- Tag SNP, tagging SNP search for term
A SNP in strong linkage disequilibrium with a set of SNPs or a copy number variant. (Alkan 2011) A tag SNP is defined as a SNP that proxies for a set of SNPs in linkage disequilibrium with itself (that is, they are in the same linkage disequilibrium bin). A haplotype tagging SNP, by contrast, is based on the haplotype block concept, in which a set of tagging SNPs are used to uniquely define the variation of all SNPs that reside in the haplotype block. (Fan 2006)