Determination of the RhC/c Blood Group by Polymerase Chain Reaction with Sequence-specific Primers of the Intron 2 Insert of the RHCE Gene / 대한수혈학회지
Korean Journal of Blood Transfusion
;
: 138-144, 2007.
Article
in Korean
| WPRIM
| ID: wpr-118888
ABSTRACT
BACKGROUND:
RhC/c blood group antigens are of clinical importance and molecular genotyping for them can be useful when serological typing is difficult. A method to determine the RhC/c genotype, by targeting exon 1 nt48 and exon 2 nt307, has been used. However, this approach is not accurate for the RHc(cyt48) variant allele. We applied a more accurate genotyping method, using the intron 2 109 bp insert of the RHCE gene, and evaluated its performance in comparison with the standard method.METHODS:
RhD and RhC/c serotypes of 236 subjects were determined. We compared two genotype results with the serological phenotype. One method examined the allele-specific exon 1 nt48 and exon 2 nt307 polymorphism area (Method 1), while the other method detected the intron 2 insert instead of the exon 1 nt48 (Method 2) by polymerase chain reaction with sequence-specific primers (PCR-SSP).RESULTS:
The predicted phenotypes by Method 1 were not matched with the true phenotypes in 24 cases (24/236, 10.2%). By contrast, the predicted results by Method 2 matched with true phenotypes in all cases except one. The RHc(cyt48) variant was suspected in 22 cases (23.7%) of the 93 Rhc cases.CONCLUSION:
For the determination of the RhC/c genotype in Koreans, the method that analyzes exon 1 nt48 is inaccurate. Instead, intron 2 insert analysis with exon 2 nt307 by PCR-SSP appears to be a more accurate alternative.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phenotype
/
Blood Group Antigens
/
Introns
/
Polymerase Chain Reaction
/
Exons
/
Alleles
/
Genotype
Language:
Korean
Journal:
Korean Journal of Blood Transfusion
Year:
2007
Type:
Article
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