Placenta Phosphoglucomutase Types in Norway: Gene Frequencies, Lack of Association with Perinatal Factors and Report of a New PGM₂ Phenotype

Phosphoglucomutase types have been determined in homogenates of 660 placentas. The gene frequencies were: PGM¹₁0.797 and PGM²₁ 0.203, PGM¹₃ 0.734 and PGM²₃ 0.266. A new PGM₂ phenotype was discovered during the study. There was no association between PGM₁ or PGM₃ phenotypes and gestational age, placenta weight, child weight or child length.