GENETIC-POLYMORPHISM OF HUMAN-PLASMINOGEN

  • 1 January 1980
    • journal article
    • research article
    • Vol. 32  (5) , 681-689
Abstract
Using isoelectric focusing (IEF) in polyacrylamide gel of neuraminidase-treated serum or plasma samples and immunofixation or caseinolytic overlay after urokinase activation of gels, a common genetic polymorphism in human plasminogen was delineated. Two alleles (PLGN*A and PLGN*B) were observed with gene frequencies in whites of 0.69 and 0.30; in Orientals of 0.96 and 0.03; and in blocks of 0.80 and 0.18. Several rare alleles were also found. The distribution of phenotypes fits the Hardy-Weinberg equilibrium. Inheritance is autosomal codominant and fits the expectations of Mendelian inheritance. There is fetal synthesis, but no transplacental passage of plasminogen in either direction.