Abstract
Polyacrylamide gel isoelectric focusing (PAGIEF) of neuraminidase-treated EDTA plasma samples followed by electroblotting with enzyme immunoassay was performed to further investigate coagulation factor XIII B subunit (FXIII B) polymorphism. In 435 Japanese subjects PAGIEF patterns of FXIII B were classified into five common and three rare allotypes. This suggested that the FXIII B*2 allele existed in the Japanese population in the same manner as in Caucasians. Three new rare allotypes were considered to be controlled by three rare alleles which were designated FXIII B*13, FXIII B*14, and FXIII B*15, respectively. The gene frequencies calculated from 435 Japanese subjects were FXIII B*1 = 0.2977, FXIII B*2 = 0.0184, FXIII B*3 = 0.6805, FXIII B*13 = 0.0011, FXIII B*14 = 0.0011, and FXIII B*15 = 0.0011, respectively.
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