Molecular analysis of 23 cases of B subgroup / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 546-547, 2022.
Article
in Chinese
| WPRIM
| ID: wpr-928456
ABSTRACT
OBJECTIVE@#To explore the molecular reasons of weak expression of B antigen on the red cell.@*METHODS@#Serological test for blood group was carried out, including red cell and plasma grouping, and anti-A1 and anti-H testing, and confirming weak A or B antigens by adsorption and elution. Exons 1-7 were sequenced directly, and one of them was cloned and sequenced.@*RESULTS@#All of the 23 samples showed the weak B antigen by serological method. The alleles of the subgroups were identified by DNA sequencing, including 2 Bel subgroup, 4 B3 subgroup, 14 Bw subgroup, 2 CisAB subgroup and a novel allele. The novel allele showed a nucleotide substitution 662G>A in the exon 7, and the sequence was submitted to Blood Group Antigen Gene Mutation Database, and the novel allele was named Bel10.@*CONCLUSION@#Nucleotide substitution in exon results in blood subgroup, which showed that the antigens were weakened, and Bw phenotype was the most frequently subgroup.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phenotype
/
ABO Blood-Group System
/
Exons
/
Alleles
/
Genotype
/
Nucleotides
Type of study:
Prognostic study
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Medical Genetics
Year:
2022
Type:
Article
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