an electrophoretically homogeneous trypsin-like proteinase , two homogeneous proteases ( presumably metal-containing ) and two elastases , possessing the atee-esterase activity , were isolated from protofradin , a protease preparation from actinomyces fradiae 119 , using fractionation on km-cellulose k-32 .
C0030940
proteases
C0030946
protease preparation