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[HLA-Cw genotyping of serologically and non-serologically defined alleles using sequence-specific primers (PCR-SSP) in a Shanghai Han population]. 1998

M L Feng, and Y Z Zhang, and Y Yang, and Q Lu, and Z Feng, and R B Chen
Shanghai Blood Center, Shanghai Institute of Blood Transfusion.

The new classical complement-mediated microlymphocytotoxicity test can detect a total of 10 different serologically defined antigen specificities (CWl-10) encoded by HLA-Cw locus. However, the blank amounts to 20%-50% for there are Cw antigens which can not be detected with antisera available. We adopted a PCR-SSP method to genotype a sample of 70 subjects collected from a Chinese Han population in Shanghai. We identified for the first time the following non-serologically defined HLA-Cw alleles in the Chinese Han population: Cw*1201/1202,1203,1301,14,1601,1602,1701, and also the serologically defined HLA-Cw alleles such as: Cw*01,02,0302/0304,0303,04,0501,0602,0701/0702/0703,08. With this sample we have made a survey of HLA-Cw allele frequencies in a Chinese Han population in Shanghai, with blank frequency being lowered from 0.307 to 0.028. The Cw*08 was originally considered to be rare in Chinese population. However, we found 12 cases of Cw*08 in this sample, which clearly does not coincide with the original point of view. Our results confirmed that PCR-SSP typing is rapid and accurate for HLA-Cw alleles.

UI MeSH Term Description Entries
D002681 China A country spanning from central Asia to the Pacific Ocean. Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China
D005838 Genotype The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS. Genogroup,Genogroups,Genotypes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000483 Alleles Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product. Allelomorphs,Allele,Allelomorph
D015236 HLA-C Antigens Class I human histocompatibility (HLA) antigens encoded by a small cluster of structural genes at the C locus on chromosome 6. They have significantly lower immunogenicity than the HLA-A and -B determinants and are therefore of minor importance in donor/recipient crossmatching. Their primary role is their high-risk association with certain disease manifestations (e.g., spondylarthritis, psoriasis, multiple myeloma). Antigens, HLA-C,HLA-C,Antigens, HLA C,HLA C Antigens
D016133 Polymerase Chain Reaction In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships. Anchored PCR,Inverse PCR,Nested PCR,PCR,Anchored Polymerase Chain Reaction,Inverse Polymerase Chain Reaction,Nested Polymerase Chain Reaction,PCR, Anchored,PCR, Inverse,PCR, Nested,Polymerase Chain Reactions,Reaction, Polymerase Chain,Reactions, Polymerase Chain
D044466 Asian People Persons having origins in any of the Asian racial groups of the Far East, Southeast Asia, or the Indian subcontinent including, for example, Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand, and Vietnam. Note that OMB category ASIAN is available for United States population groups. Race and ethnicity terms, as used in the federal government, are self-identified social construct and may include terms outdated and offensive in MeSH to assist users who are interested in retrieving comprehensive search results for studies such as in longitudinal studies. Asian Continental Ancestry Group,Asian Person,Asiatic Race,Mongoloid Race,Asian Peoples,Asian Persons,Asiatic Races,Mongoloid Races,People, Asian,Person, Asian,Race, Asiatic,Race, Mongoloid

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