Polymorphism of alpha 2-HS-glycoprotein (AHSG) was revealed in human urine by isoelectric focusing and immunoblotting on polyacrylamide gels. More than 200 urine samples were examined in this manner and correct AHSG typing of the urine samples was achieved, in comparison with the results of direct grouping for plasma. Three phenotypes, AHSG 1, 2-1 and 2, were observed and found to be determined by two common alleles, AHSG*1 and AHSG*2. The frequencies of AHSG*1 and AHSG*2 calculated in a Japanese population were 0.7637 and 0.2363, respectively.
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Kishi et al. (1988) studied this question.