Procathepsin B Is a Lysosomal Protease That Is First Translated

question 21

Multiple Choice

Procathepsin B is a lysosomal protease that is first translated as a proenzyme.On autocleavage it is fully activated.Procathepsin B is

• A) a zymogen.
• B) in the T state after autocleavage.
• C) an allosteric enzyme.
• D) inactive at low pH.

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