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Phenyl-Methane-Sulfonyl-Fluoride (PMSF)inactivates Serine Proteases by Binding Covalently to the Catalytic

Question 36

Multiple Choice

Phenyl-methane-sulfonyl-fluoride (PMSF) inactivates serine proteases by binding covalently to the catalytic serine residue at the active site;this enzyme-inhibitor bond is not cleaved by the enzyme.This is an example of what kind of inhibition?


A) Irreversible
B) Competitive
C) Non-competitive
D) Mixed
E) pH inhibition

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