Identification and sequence analysis of a null HLA-B allele HLA-B*5408N newly detected / 中国实验血液学杂志
Journal of Experimental Hematology
; (6): 870-872, 2007.
Article
in Zh
| WPRIM
| ID: wpr-276804
Responsible library:
WPRO
ABSTRACT
The study was purposed to investigate the molecular genetic basis for HLA novel allele HLA-B*5408N in Chinese population. DNA was extracted from whole blood by commercial DNA extraction kit, the HLA-B exons 2 - 4 of the proband was amplified by allele specific primers PCR and the amplified product was sequenced for exons 2, 3 and 4 bidirectionally. The sequencing results showed HLA-B alleles of the proband as B*1527 and the novel allele. The sequences of the novel allele have been submitted to Genbank (DQ295998, DQ295999, DQ296000). After blast analysis, the novel allele showed a single nucleotide mismatch with HLA-B*5401 in exon 3 at position 553 G-->T, which resulted in an amino acid changing from Glu to premature stop codon at position 161. No the HLA-B54 antigen specificity expression in the proband cells was found using HLA-AB serological Typing Trays. It is concluded that this allele is a novel null allele and has been officially named B*5408N by the WHO Nomenclature Committee.
Full text:
1
Database:
WPRIM
Main subject:
HLA-B Antigens
/
China
/
Polymerase Chain Reaction
/
Exons
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Sequence Analysis, DNA
/
Alleles
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Genetics
Limits:
Humans
Country/Region as subject:
Asia
Language:
Zh
Journal:
Journal of Experimental Hematology
Year:
2007
Document type:
Article