Genetic polymorphism of the vitamin D binding protein (Gc protein) in pig plasma determined by agarose isoelectrofocusing.

Genetic polymorphism of the pig plasma vitamin D binding protein Gc was demonstrated by agarose isoelectrofocusing followed by either autoradiography or immunofixation with specific human Gc antiserum. Three different types F, FS and S were observed. Family data supported the genetic theory that the Gc types are controlled by two autosomal codominant alleles GcF and GcS. Both alleles are present in Yorkshire and Duroc. In Danish Landrace and Hampshire only the GcF allele was observed.