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Analysis for complete genomic sequence of HLA-B and HLA-C alleles in the Chinese Han population
1HLA Typing Laboratory, Blood Center of Zhejiang Province and Key Laboratory of Blood Safety Research, Ministry of Health, Hangzhou, Zhejiang Province, China.
Abstract:
In the present study, we have determined the complete genomic sequence and analysed the intron polymorphism of partial HLA-B and HLA-C alleles in the Chinese Han population. Over 3.0 kb DNA fragments of HLA-B and HLA-C loci were amplified by polymerase chain reaction from partial 5' untranslated region to 3' noncoding region respectively, and then the amplified products were sequenced. Full-length nucleotide sequences of 14 HLA-B alleles and 10 HLA-C alleles were obtained and have been submitted to GenBank and IMGT/HLA database. Two novel alleles of HLA-B*52:01:01:02 and HLA-B*59:01:01:02 were identified, and the complete genomic sequence of HLA-B*52:01:01:01 was firstly reported. Totally 157 and 167 polymorphism positions were found in the full-length genomic sequence of HLA-B and HLA-C loci respectively. Our results suggested that many single nucleotide polymorphisms existed in the exon and intron regions, and the data can provide useful information for understanding the evolution of HLA-B and HLA-C alleles.
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