Mutations affect the genes that encode certain cytochromes P450 (CYP450) isoenzymes that are
responsible for metabolism of drugs. The aim of this study was to determine the frequency of CYP2B6 (516GT)
SNP in the Burkinabè population. Genomic DNA extraction from blood was performed by GenJET® Genomic
DNA according to the manufacturer’s instructions. Genotyping for the cytochrome P450 variant alleles was
performed using predesigned primers. The amplification was carried out by PCR while the differentiation
between the alleles was carried out after digestion with restriction enzymes by electrophoresis. The CYP2B6
c.516GT was successfully analyzed in 92,38% (291/315) of the study participants. Among the investigated
individuals, the distribution of the major allele CYP2B6*G was 56% and the minor CYP2B6*T allele was 44%.
The results obtained showed a prevalence of 56% for the G allele and 44% for the T allele. This was distributed
as 31% for the GG genotype (reduced dosage required), 51% for the GT genotype (normal dosage range), and
18% for the TT genotype (high drug toxicity). The presence of the rapid and poor metabolizer phenotypes in the
studied sample shows the need for additional studies to better assess their impact on Burkinabe people.

CYP 450, CYP 450 2B6, HIV, Malaria