rs4986893 is a SNP in the CYP2C19 gene, potentially encoding the CYP2C19*3 variant. This variant has been linked to poor metabolism of compounds like mephenytoin as well as proguanil, and it therefore has implications for malaria prophylaxis. [Clopidogrel Efficacy

[PMID 23517020] Influence of CYP2C19*2 and *3 loss-of-function alleles on pharmacodynamic effects of standard- and high-dose clopidogrel in East Asians undergoing percutaneous coronary intervention: the results of the ACCEL-DOUBLE-2N3 study

[PMID 23661171] CYP2C19 genotypes and their impact on clopidogrel responsiveness in percutaneous coronary intervention

[PMID 23645039] High prevalence of CYP2C19*2 allele in Roma samples: study on Roma and Hungarian population samples with review of the literature

[PMID 23130019] Frequencies of 23 functionally significant variant alleles related with metabolism of antineoplastic drugs in the chilean population: comparison with caucasian and asian populations.

[PMID 23133420] Pharmacogenomic Diversity among Brazilians: Influence of Ancestry, Self-Reported Color, and Geographical Origin.


Parent Gene: CYP2C19

Importance: 1
Less common allele: A = 1%
More common allele: G = 99%
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