THE CELL
CELL COMMUNICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cAMP
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G Protein
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protein kinase
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protein phosphatase
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Detailed explanation-1: -Protein kinases such as PKA and PKC catalyze the transfer of phosphate groups from ATP molecules to protein molecules.
Detailed explanation-2: -Protein kinase A (PKA) is activated by elevations in cAMP and is a prominent and well-studied effector of cAMP signaling. PKA exists as a heterotetramer of two catalytic and two regulatory subunits.
Detailed explanation-3: -Protein kinases transfer a phosphoryl group from ATP onto target proteins and play a critical role in signal transduction and other cellular processes.
Detailed explanation-4: -Protein phosphatases have recently been identified that inactivate MAP kinases and turn off intracellular signalling pathways.
Detailed explanation-5: -A type of enzyme (a protein that speeds up chemical reactions in the body) that adds chemicals called phosphates to other molecules, such as sugars or proteins.