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KMID : 0387720230340010039
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Korean Journal of Blood Transfusion
2023 Volume.34 No. 1 p.39 ~ p.42
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Considerations on ABO Genotyping Results: Lessons from ABO*AW.10 Allele Cases
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Park Dong-Jin
Lim Chang-Soo
Lim Ji-Hyang
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Abstract
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We would like to introduce domestic subscribers of the Korean Journal of Blood Transfusion to the important aspects to be considered while selecting a reference allele and reporting a new allele candidate. ABO*A1.02 has only a single nucleotide substitution of c.467C＞T in ABO*A1.01, and when ABO*A1.01 is used as the reference allele, the ABO*AW.10 allele should be marked as having both c.467C＞T and c.784G＞A variants. Unfortunately, it has not been modified as such in the ISBT database. For this reason, in the journal Transfusion (2020), the official journal of the Association for the Advancement of Blood Biotherapies, there was a report of a new allele with c.467C＞T and c.784G＞A variants. Cases of ABO*AW.10 allele with a weak A phenotype are not uncommon in Koreans, and it is necessary to accurately mark the reference allele. The blood type A reference allele of the International Society of Blood Transfusion (ISBT) database currently used for ABO alleles reporting is based on ABO*A1.01. Therefore, it should be considered that the ABO*AW.10 allele has both the c.467C＞T and c.784G＞A variants together.
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KEYWORD
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ABO*AW.10, ABO genotyping, Reference allele, c.467C＞T, c.784G＞A
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