PGM1a subtyping in Western Germany (Düsseldorf region)

Phosphoglucomutase (PGM1a) subtypes were determined by isoelectric focusing on samples of 496 unrelated individuals. Ten phenotypes were observed as gene products of four alleles at the PGM1 locus, with the following gene frequencies: PGM1a1 = 0.631, PGM1a2 = 0.194, PGM1a3 = 0.126, and PGM1a4 = 0.049. A rare phenotype PGM1(8-a2) was observed.