for enzymes isolated from guinea-pig tissues , it is found that the specific activity of the ; high activity ' isoenzyme ( carbonic anhydrase c , carbonic anhydrase ii , haca ) is about eighteen times that of the ; low activity ' counterpart ( carbonic anhydrase b , carbonic anhydrase i , laca ) when measured at 0 degrees c , ph 7.2 , and ionic strength 0.19 .
C0014442
enzymes
C0022173
isoenzyme