ANIMAL PHYSIOLOGY
CHEMICAL SIGNALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In the signal transduction mechanism known as protein phosphorylation
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the signaling molecule binds to a surface receptor
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receptor kinases play a key role in triggering the signal cascade
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phosphorylated proteins act with enzymes to trigger the signal cascade
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All of the above
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Explanation:
Detailed explanation-1: -This chapter discusses two mechanisms of signal transduction: generation of second messengers, and receptor phosphorylation. Most signaling involves receptor activation of a GTP-binding protein (G protein). The activated G proteins interact with enzymes that produce second messenger molecules.
Detailed explanation-2: -Protein phosphorylation is a posttranslational modification (PTM) consisting of the addition of phosphate groups to specific amino acid residues on proteins. This PTM has the potential to alter the stability, subcellular location, and enzymatic activity of proteins with diverse roles in cells.
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