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- Title
Association analysis of the ACTN3 R577X polymorphism and complex quantitative body composition and performance phenotypes in adolescent Greeks.
- Authors
Moran, Colin N; Yang, Nan; Bailey, Mark E S; Tsiokanos, Athanasios; Jamurtas, Athanasios; MacArthur, Daniel G; North, Kathryn; Pitsiladis, Yannis P; Wilson, Richard H
- Abstract
The functional allele (577R) of ACTN3, which encodes human alpha-actinin-3, has been reported to be associated with elite athletic status and with response to resistance training, while the nonfunctional allele (577X) has been proposed as a candidate metabolically thrifty allele. In a study of 992 adolescent Greeks, we show that there is a significant association (P=0.003) between the ACTN3 R577X polymorphism and 40 m sprint time in males that accounts for 2.3% of phenotypic variance, with the 577R allele contributing to faster times in an additive manner. The R577X polymorphism is not associated with other power phenotypes related to 40 m sprint, nor with an endurance phenotype. Furthermore, the polymorphism is not associated with obesity-related phenotypes in our population, suggesting that the 577X allele is not a thrifty allele, and thus the persistence of this null allele must be explained in other terms.
- Publication
European journal of human genetics : EJHG, 2007, Vol 15, Issue 1, p88
- ISSN
1018-4813
- Publication type
Journal Article
- DOI
10.1038/sj.ejhg.5201724