DENATURATION AND INACTIVATION OF ENZYME PROTEINS

Abstract
Inactivation of crystalline fumarase of pig and beef heart muscle proceeded at higher rate with increasing concentrations of bacterial (Bacillus subtilis) proteinase. Trypsin and carboxypeptidase did not affect fumarase. Urea, at a high concentration (2.25-3.15[image]), evidently inactivated fumarase. Urea (2.25 [image])-treated fumarase was more susceptible to proteinase inactivation than the untreated one.