title: HLA-A and HLA-B allele frequencies in a mestizo population from Guadalajara, Mexico, determined by sequence-based typing.
abstract: HLA-A and HLA-B genes were typed by DNA sequencing in a mestizo population from Guadalajara, Jalisco, Mexico. Thirty-seven HLA-A and 51 HLA-B alleles were observed in 103 samples. The common typical Amerindian alleles (>5%) and haplotypes (>or=2.0%) found were A*02010101, *24020101, *310102, B*350101, and *4002, and A*310102-B*4002, A*240201-B*350101, and the typical European alleles were A*010101, *29010101, B*1402, B*180101, and A*020101-B*1402, A*020101-B*510101, and A*3002-B*180101. This reflects the blending of the two main parental populations of mestizos: Amerindian and Iberian. Mexicans were found to be relatively closer to the Portuguese than to Spaniards. This proximity may indicate a larger Portuguese influence in Mexicans than previously considered. Present data contribute to the understanding of the genetic structure in Mexico.
authors.affiliation: Surgical Research Division, Centro de Investigación Biomédica de Occidente, IMSS, Guadalajara, Jalisco, C.P. 44340 México. lealc@mail.udg.mx
authors.forename: C A
authors.initials: CA
authors.lastname: Leal
authors.forename: F
authors.initials: F
authors.lastname: Mendoza-Carrera
authors.forename: F
authors.initials: F
authors.lastname: Rivas
authors.forename: S
authors.initials: S
authors.lastname: Rodriguez-Reynoso
authors.forename: E
authors.initials: E
authors.lastname: Portilla-de Buen
mesh_terms: D005787:Gene Frequency; D005828:Genetics, Population; D015234:HLA-A Antigens / Q000145:classification / Q000235:genetics*; D015235:HLA-B Antigens / Q000145:classification / Q000235:genetics*; D006239:Haplotypes; D006650:Histocompatibility Testing; D006801:Humans; D008800:Mexico; D010802:Phylogeny; D011174:Portugal; D017421:Sequence Analysis; D013030:Spain
chemical_list: D015234:HLA-A Antigens; D015235:HLA-B Antigens