The angiotensin-converting enzyme from rabbit lung was purified to a homogeneous protein. The molecular weight of the enzyme or its subunits in sodium dodecyl sulfate-polyacrylamide gel electrophoresis was established as 180,000. Converting enzyme contained about 8% (w/w) hexoses (based on glucose). The K,,, values for the hydrolysis of angiotensin I and [desAspllangiotensin I by the purified e...
