A PROCESS FOR PREPARING URIDINE DIPHOSPHATE-N-ACETYLGALACTOSAMINE

摘要

There is disclosed a method for measuring the activity of alpha -N-acetylgalactosaminyl transferase by means of the conversion of Type O red blood cells to Type A ones, characterized by the direct use, as the substrate for the conversion reaction, of a reaction solution obtained by enzymatically converting uridine diphosphate-N-acetylglucosamine to uridine diphosphate-N-acetylgalactosamine.