48.蛋白激酶A（Protein kinase A）具有下列何種特性？
(A)與cyclic AMP共價鍵結合而活化
(B)與cyclic AMP共價鍵結合而抑制
(C)cyclic AMP與酵素的異位性結合位（allosteric site）結合而使酵素活化
(D)受到cyclic AMP的競爭性抑制

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統計： A(110), B(6), C(274), D(10), E(0) #1621159

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#2884123
PKA有兩個催化次單元(C)和兩個調控次...
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#5682021

ch12-8. Protein kinase A (PKA) is:
A) activated by covalent binding of cyclic AMP.
B) affected by cyclic AMP only under unusual circumstances.
C) allosterically activated by cyclic AMP.
D) competitively inhibited by cyclic AMP.
E) noncompetitively inhibited by cyclic AMP.
Ans:C) allosterically activated by cyclic AMP.

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