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ENGLISH ABSTRACT
JOURNAL ARTICLE
[Serological and molecular study of three cases with a rare Bx02 blood group].
Zhonghua Yi Xue Yi Chuan Xue za Zhi = Zhonghua Yixue Yichuanxue Zazhi = Chinese Journal of Medical Genetics 2017 Februrary 11
OBJECTIVE: To determine the genotypes of three blood samples suspected as B subtype through DNA sequencing.
METHODS: The samples were first genotyped with PCR-SSP. Exons 6 and 7 of the ABO genes were subjected to PCR, direct sequencing, and cloned sequencing to determine the genotypes.
RESULTS: Serological results of the three samples were similar, with red cells being weakly agglutinatable by anti-B and serum containing anti-B. The samples were preliminarily genotyped as B/O1. Sequencing analysis showed that all three samples contained an O allele and a 905A>G mutation of the B gene, which was previously defined as Bx02.
CONCLUSION: Through sequencing analysis, the three samples typed as B subtype with serological testing were identified as Bx phenotype. The genotype of samples 1 and 2 was Bx02/O101, and that of sample 3 was Bx02/O102.
METHODS: The samples were first genotyped with PCR-SSP. Exons 6 and 7 of the ABO genes were subjected to PCR, direct sequencing, and cloned sequencing to determine the genotypes.
RESULTS: Serological results of the three samples were similar, with red cells being weakly agglutinatable by anti-B and serum containing anti-B. The samples were preliminarily genotyped as B/O1. Sequencing analysis showed that all three samples contained an O allele and a 905A>G mutation of the B gene, which was previously defined as Bx02.
CONCLUSION: Through sequencing analysis, the three samples typed as B subtype with serological testing were identified as Bx phenotype. The genotype of samples 1 and 2 was Bx02/O101, and that of sample 3 was Bx02/O102.
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