Ras Protein Mutation and Cell Signaling
A mutation in the GTPase domain of a Ras protein prevents the hydrolysis of GTP, a condition associated with excessive cell proliferation. Which of the following best describes the effect of this mutation on the cell signaling pathway?
A
Ras cannot bind to GTP, blocking all downstream signaling
B
Ras binds to inhibitory proteins more effectively
C
Ras remains locked in its active state, continuously signaling
D
Ras degrades more rapidly, reducing signal duration
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