Galactosemia: Evidence for a Structural Gene Mutation

Abstract

Identical immunoprecipitin reactions appeared in double immunodiffusion between rabbit anltibodies to human galactose-1-phosphate uridyl transferase and red cell preparations from both normal and galactosemic individuals. The galactosemic erythrocyte preparations quantitatively absorbed the antiboy that immunoprecipitates enzymatically active galactose-1-phosphate uridyl transferase.