Discovery of HLA-DRB1*03:20 allele in a Taiwanese volunteer hematopoietic stem cell donor and the probable HLA-A, -B, -C and-DRB1 haplotype in association with DRB1*03:20

作者：Yang K L^*; Lee S K; Yang S Y; Kao R H; Lin C L; Lin P Y

来源：International Journal of Immunogenetics, 2013, 40(3): 243-245.

DOI：10.1111/j.1744-313X.2012.01151.x

The allele HLA-DRB1*03:20, a variant of DRB1*03, was first reported to the IMGT HLA database in April 2001 without indication on the ethnicity of the blood donor (Cell ID: HC 125775). We found a Taiwanese volunteer hematopoietic stem cell donor carries DRB1*03:20 by a sequence-based typing (SBT) method. The DNA sequence of DRB1*03:20 is identical to the sequence of DRB1*03:01:01 in exon 2, except a nucleotide substitution at position 341(TC) (GTTGCT at codon 85). The nucleotide replacement produced an amino acid variation at residue 85 (VA). We hypothesize that DRB1*03:20 was probably derived from DRB1*03:01:01 via a nucleotide point mutation event. The probable HLA haplotype in association with DRB1*03:20 was deduced as A*11:02-B*58:01-C*07:02-DRB1*03:20. We here report the Taiwanese/Chinese ethnicity of DRB1*03:20.

• 出版日期2013-6