Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1999-10-12
pubmed:abstractText
Polymerase chain reaction using sequence-specific oligonucleotide probes (PCR-SSOP) typing was used to analyze HLA class I A, B and C alleles in three different Colombian populations. Fifty-nine samples were from Hispano-American Mestizos living in the urban areas of Cali (referred to here as Aso population). Forty-four and thirty samples were from the African Black populations of Zacarias (Zac) and Punta Soldado (PS), respectively. Samples were selected for expression of HLA-A2 by monoclonal antibody staining and allele-specific hybridization, and their HLA-A2 subtype distribution has been reported previously. Although only a limited number of samples was analyzed, the data suggest the existence of a remarkable degree of HLA class I polymorphism in the populations studied, with representatives of most serological classes. Despite their common African origin, the populations Zac and PS, both resident in malaria endemic regions, showed some striking differences in allelic distribution for all three class I loci. Furthermore, the samples from Aso and PS, but not Zac, showed a low percentage of blank alleles at the HLA-B locus (0 and 0.4%, respectively), suggesting the possibility of a heterozygote advantage for HLA-B alleles in Colombian populations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0001-2815
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
519-26
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Molecular characterization of HLA class I in Colombians carrying HLA-A2: high allelic diversity and frequency of heterozygotes at the HLA-B locus.
pubmed:affiliation
Tissue Typing Laboratory, Istituto Scientifico H.S. Raffaele, Milan, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't