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Japanese single nucleotide polymorphism database for 267 possible drug-related genes.

Iida A, Saito S, Sekine A, Takahashi A, Kamatani N, Nakamura Y

Laboratories for Pharmacogenetics, RIKEN SNP Research Center, c/o Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan.

To establish 'personalized medicines' that can provide the right drug at the appropriate dose for each individual patient on the basis of genetic background, we have been building the infrastructure for a Japanese single nucleotide polymorphism (SNP) database of the genes encoding various enzymes, transporters and receptors that are involved in the metabolism, transportation and action of drugs. We have so far screened a genomic region of 4,068.3 kb, and identified a total of 7,552 genetic variations, including 6,733 SNP and 819 genetic variations of other types among 267 genes in Japanese populations. Interestingly, among the 212 non-synonymous substitutions we found, six would be considered to be nonsense mutations. In this review, we focused on the molecular features of the non-synonymous substitutions and insertion/deletion polymorphisms within coding regions detected in drug-related gene loci. The database established in this study makes us confident of achieving one of our goals, which is establishment of personalized medicine.

Published 21 December 2005 in Cancer Sci, 97(1): 16-24.
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