Human genetic variation of CYP450 superfamily: analysis of functional diversity in worldwide populations.

Polimanti R, Piacentini S, Manfellotto D, Fuciarelli M.

Source

Department of Biology, University of Rome, "Tor Vergata", Via della Ricerca Scientifica 1, 00133, Rome, Italy.

Abstract

Aim: The present study aimed to investigate the human genetic diversity of the CYP450 superfamily in order to identify functional interethnic differences and analyze the role of CYP450 enzymes in human adaptation. Materials & methods: A computational analysis of genetic and functional differences of the 57 CYP450 genes was performed using the Human Genome Diversity Project and HapMap data; comprising approximately 1694 individuals belonging to 62 human populations. Results: Twenty-six CYP450 SNPs with F-statistics significantly different than the general distribution were identified. Some showed high differentiation among human populations, suggesting that functional interethnic differences may be present. Indeed, some of these are significantly associated with drug response or disease risk. Furthermore, our data highlighted that TBXAS1 and genes in CYP3A cluster may have a role in some processes of human adaptation. Conclusion: Our study provided an analysis of genetic diversity of CYP450 superfamily, identifying functional differences among ethnic groups and their related clinical phenotypes. Original submitted 18 July 2012; Revision submitted 21 September 2012.