試題詳解

26. You hypothesize that a newly purified enzyme may function as a serine protease. Which one of the following findings is   NOT   a useful proof of your hypothesis?
(A) This enzyme can be inhibited by metal chelator EDTA.
(B) A covalent bond between the enzyme and the substrate is transiently formed during catalysis.
(C) Structural analysis shows that this enzyme contains the Asp-His-Ser catalytic triad.
(D) This enzyme hydrolyzes polypeptides.
(E) The catalytic activity of this enzyme is pH-dependent.