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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Second messengers, DAG and IP3 are formed from
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The correct answer is  Phosphatidylinositol Is a Precursor of Second MessengersThe G proteins activate phospholipase C, which hydrolyzes phosphatidylinositol4,5-bisphosphate to produce diacylglycerols and the water-soluble second messenger inositol 1,4,5-triphosphate (IP3).Ref: Harper&;s Biochemistry; 30th edition; Chapter 54; White Blood Cells