Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (19): 3037-3041.doi: 10.3969/j.issn.2095-4344.2015.19.015

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Sequence analysis and identification of a novel allele, HLA-B*55:46

Yin Hong1, Li Xiao-feng2, 3, 4, Li Jian-ping2, 3, 4, 5   

  1. 1Department of Anaesthesia, Shengjing Hospital Affiliated to China Medical University, Shenyang 110041, Liaoning Province, China; 2Transfusion Medicine Institute, Liaoning Blood Center, Shenyang 110044, Liaoning Province, China; 3Key Laboratory of Blood Safety Research of Liaoning, Shenyang 110044, Liaoning Province, China; 4Key Laboratory of Blood Safety Research of Shenyang, Shenyang 110044, Liaoning Province, China; 5Shenyang Research Center for Stem Cell Clinical Application, Shenyang 110044, Liaoning Province, China
  • Online:2015-05-06 Published:2015-05-06
  • Contact: Li Jian-ping, M.D., Chief physician, Transfusion Medicine Institute, Liaoning Blood Center, Shenyang 110044, Liaoning Province, China; Key Laboratory of Blood Safety Research of Liaoning, Shenyang 110044, Liaoning Province, China; Key Laboratory of Blood Safety Research of Shenyang, Shenyang 110044, Liaoning Province, China; Shenyang Research Center for Stem Cell Clinical Application, Shenyang 110044, Liaoning Province, China
  • About author:Yin Hong, M.D., Department of Anaesthesia, Shengjing Hospital Affiliated to China Medical University, Shenyang 110041, Liaoning Province, China
  • Supported by:

    Shenyang Science and Technology Project, No. F10-206-1-00

Abstract:

BACKGROUND: In recent years, with the development of China Marrow Donor Program and the improvement of human leukocyte antigen (HLA) typing technique, novel HLA alleles have been discovered constantly in China. 
OBJECTIVE: To identify and confirm a novel HLA allele in a Chinese individual.
METHODS: A new HLA allele was found in a 27-year-old male Han volunteer donor of hematopoietic stem cells during routine HLA genotyping by PCR-sequence specific oligonucleotide probes and sequencing-based typing.
RESULTS AND CONCLUSION:The HLA-B locus hybridization probe reaction patterns of this sample did not match to any known HLA-B alleles or allelic combinations. Exons 2-3 were sequenced in both directions using HLA-B sequence primer and group-specific sequencing primer. The new sequence had 1 nt change from its closest allele B*55:02:01 at nucleotide 412 where A→G (codon138 AAC→GAC) resulting in a coding change, 
138 Asparagine (N) was changed to Aspartate (D). The nucleotide sequence has been submitted to the GenBank nucleotide sequence database and it is available under the accession number HM989018. A novel HLA allele, HLA-B*55:46, has been identified, and named officially by the WHO Nomenclature Committee.

Key words: 干细胞, 培养, 新等位基因, HLA-B*55:46, 序列分析, 聚合酶链式反应, 序列特异性寡核苷酸探针, 碱基, 氨基酸, 人类白细胞抗原, 基因座, 外显子

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