title: [Genotyping of ABO loci in para-Bombay type individuals].
abstract: To study the molecular genetic basis of ABO alleles in para-Bombay type individuals, samples from five para-Bombay type individuals identified by serologic tests including absorption-elution tests, saliva neutralizing or inhibitor substances tests, were genotyped by using PCR-SSP based ABO genotyping. Exon 6 and exon 7 at the ABO locus for all 5 samples were sequenced. The results showed that the ABO genotypes of five para-Bombay samples were A102B1, A102B1, A102O1, A102B1, B1O1 respectively, the direct DNA sequencing results were in accordance with the results genotyped by PCR-SSP method, No novel nucleotide mutation was found at the exon 6 and exon 7 of ABO gene. In conclusion, the ABO genotyping assay by PCR-SSP provide a simple, rapid and accurate method for determining the ABO type of para-Bombay cases.
authors.affiliation: Shenzhen Blood Center, Shenzhen 518035, China. zjq@szbc.org
authors.forename: Jian-Qiang
authors.initials: JQ
authors.lastname: Zeng
authors.forename: Guang-Ping
authors.initials: GP
authors.lastname: Luo
mesh_terms: D000017:ABO Blood-Group System / Q000235:genetics*; D000483:Alleles; D002874:Chromosome Mapping; D005260:Female; D005838:Genotype; D006801:Humans; D008297:Male; D016133:Polymerase Chain Reaction; D017422:Sequence Analysis, DNA
chemical_list: D000017:ABO Blood-Group System