G6PD (AC)n and (CTT)n microsatellites in Mexican Mestizos with common G6PD African variants |
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Authors: | Vaca Gerardo |
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Affiliation: | División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social (IMSS), Guadalajara, Jalisco, Mexico. gvacap@yahoo.com |
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Abstract: | Genotyping for the G6PD (AC)n and (CTT)n microsatellites in a sample of 58 Mexican Mestizos with common G6PD African variants was carried out. The second mutation that defines to the variants G6PD A(-202A/376G), G6PD Santamaria(376G/542T) and G6PD A(-376G/968C) very probably occurred on G6PD A(376G) chromosomes with the compound haplotypes, intragenic silent polymorphisms and microsatellites, Pvu-II/Pst-I/Bcl-I/Nla-III/(AC)n/(CTT)n: +/+/-/+/166 bp/195 bp, -/+/-/+/166 bp/201 bp, and -/+/-/+/166 bp/204 bp respectively. The structure of the repeat sequences for the AC-166 bp allele in the 3 variants was (TA)5(AA)1(TA)9(CA)10 whereas the repeat sequences for the CTT-195 bp, CTT-201 bp and CTT-204 bp alleles were (CTT)11(ATT)6, (CTT)7(ATT)12 and (CTT)7(ATT)13 in the first, second and third variants respectively. Genotyping for the G6PD microsatellites can be a useful tool with several applications. |
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Keywords: | G6PD African variants G6PD microsatellites Screening Mexican Mestizos |
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