The Compound GDPNP Is a GTP Analog That Can Bind

question 22

Multiple Choice

The compound GDPNP is a GTP analog that can bind to GTPases in the same way as GTP. However, unlike GTP, it cannot undergo the hydrolysis reaction that normally releases Pᵢ. Therefore, …

• A) GDPNP and GDP bind to the same conformation of a GTPase.
• B) a GDPNP-bound Ras is constitutively active.
• C) a GDPNP-bound EF-Tu cannot bind to tRNA molecules.
• D) binding of GDPNP to EF-Tu allows multiple cycles of tRNA binding and release without the use of free energy.
• E) None of the above.

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Definitions:

Reverse Psychology

A technique involving the assertion of a belief or behavior that is opposite to the one desired, with the expectation that this approach will encourage the subject to do what actually is desired.

Behavioral Self-examination

The process of reflecting on one's actions and behaviors with the aim of understanding and improving oneself.

Theory of Mind

The ability to attribute mental states—beliefs, intents, desires, emotions, knowledge—to oneself and others, and to understand that others have beliefs, desires, and intentions that are different from one's own.

Brain Matures

The process through which the brain develops and refines its function and structure over time.