peptide mapping and sequence analysis of the cleavage products of reduced and carboxymethylated ribonuclease have been applied to the study of the activity and specificity of trypsin , chymotrypsin , elastase , lysyl endopeptidase ( achromobacter protease i ) , endoproteinase arg-c ( from mouse submaxillary gland ) , staphylococcus aureus v8 protease , pepsin , and thermolysin in the presence of 20 % methanol , ethanol , 2-propanol , and acetonitrile at 22 and 37 degrees c .
C0001962
ethanol
C0022237
2-propanol