For a G Protein to Play Its Part in Moving

question 73

Multiple Choice

For a G protein to play its part in moving events forward in a signal pathway,

• A) GDP must be released,and a GTP must occupy the nucleotide-binding site.
• B) GTP must be released,and a GDP must occupy the nucleotide-binding site.
• C) cGMP must occupy the otherwise empty nucleotide-binding site.
• D) cGMP must leave the otherwise occupied nucleotide-binding site.
• E) it must be linked to a specific intracellular receptor.

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