Genetic polymorphism of human peptidase C, PEPC (E.C.3.4.1.1): formal genetic and population data.

Human peptidase C, PEPC (E.C.3.4.1.1), exhibits a previously undescribed genetic polymorphism, detectable in red cells or leukocytes by starch gel electrophoresis. Segregation analyses on 161 families with 469 offspring support the formal genetic hypothesis of two codominant alleles at an autosomal locus. Since four rare variants have previously been described, we named the polymorphic allele PEPC6. Gene frequencies from southwestern Germany were PEPC1 = 0.721 +/- 0.018; PEPC6 = 0.276 +/- 0.018, and PEPCR = 0.003 +/- 0.002.