PMID- 19254259 OWN - NLM STAT- MEDLINE DCOM- 20090529 LR - 20221207 IS - 1399-0039 (Electronic) IS - 0001-2815 (Linking) VI - 73 IP - 3 DP - 2009 Mar TI - Ethnic variation of the HLA-G*0105N allele in two Chinese populations. PG - 270-4 LID - 10.1111/j.1399-0039.2008.01196.x [doi] AB - Unlike high polymorphic classical human leukocyte antigen (HLA) class I molecules, the genetic polymorphism of HLA-G is very limited. However, the prevalence of HLA-G alleles among different ethnic populations varied dramatically. The HLA-G null allele (HLA-G*0105N) is defined by a cytosine deletion (Delta C) at position 1597 in exon 3, which disrupts the reading frame and alters the expression of HLA-G proteins. The HLA-G*0105N allelic frequency was investigated in previous studies and possible roles were addressed. In the current study, a total of 310 Chinese Han and 260 Chinese She ethnic minority population had been genotyped for the G*0105N polymorphism. Marked difference was observed that the G*0105N allelic frequency in Chinese Han was 1.61%, while no copy of the null allele was observed in the Chinese She minority population (P(c) = 0.0073). Data also revealed that no homozygote of HLA-G*0105N allele exists in this Chinese Han population. Furthermore, significant difference was found for the frequencies of HLA-G*0105N both in Chinese Han and in Chinese She populations when compared with other ethnic populations. Taken together, our results indicated that ethnic variation of the HLA-G*0105N polymorphism among different ethnic populations is possibly the result of evolution. However, the advantages of the selection of this allele are necessary to be further investigated. FAU - Lin, A AU - Lin A AD - Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical College, Linhai, Zhejiang, China. FAU - Li, M AU - Li M FAU - Xu, D-P AU - Xu DP FAU - Zhang, W-G AU - Zhang WG FAU - Yan, W-H AU - Yan WH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Tissue Antigens JT - Tissue antigens JID - 0331072 RN - 0 (HLA Antigens) RN - 0 (HLA-G Antigens) RN - 0 (HLA-G*01:05N antigen) SB - IM MH - *Alleles MH - Asian People/*genetics MH - China/ethnology MH - Genetic Variation MH - HLA Antigens/*genetics MH - HLA-G Antigens MH - Humans MH - Polymorphism, Genetic EDAT- 2009/03/04 09:00 MHDA- 2009/05/30 09:00 CRDT- 2009/03/04 09:00 PHST- 2009/03/04 09:00 [entrez] PHST- 2009/03/04 09:00 [pubmed] PHST- 2009/05/30 09:00 [medline] AID - TAN1196 [pii] AID - 10.1111/j.1399-0039.2008.01196.x [doi] PST - ppublish SO - Tissue Antigens. 2009 Mar;73(3):270-4. doi: 10.1111/j.1399-0039.2008.01196.x.