carcinoembryonic antigen and activities of glucosephosphate isomerase ( ec 5.3.1.9 ) , gamma-glutamyltransferase ( ec 2.3.2.2 ) , and lactate dehydrogenase ( ec 1.1.1.27 ) were measured in aqueous extracts of fetal , normal adult , and malignant human colon tissues .
C0030016
ec
C0022917
lactate dehydrogenase