Radin genotyping by PCR-SSP.

A PCR was devised to amplify a specific PCR product of 156-bp size from the ERMAP(Pro60Ala) allele carrying the Rd antigen. Representative results for Sc:1,-2; Sc:1,2; Sc:-1,2; and Sc:-1,-2 samples and an Rd⁺ sample are shown. The 434-bp control product derives from the HGH gene, but this product may be lacking because of competition, if a specific product is present.