How is Ras activity turned off?
a) it is turned off by phosphorylation
b) it is turned off by an allosteric inhibitor
c) it is turned off by hydrolysis of its bound GTP to GDP
d) it is turned off by hydrolysis of its bound GDP to GTP
e) it is turned by hydrolysis of its bound GTP to GMP
Ans: c) it is turned off by hydrolysis of its bound GTP to GDP
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