Inositol 1,4,5-Trisphosphate

question 13

Multiple Choice

Inositol 1,4,5-trisphosphate

• A) binds to a specific site on protein kinase A.
• B) binds to a specific site on phosphoprotein phosphatase.
• C) is formed by three phosphorylations of inositol in the presence of ATP.
• D) regulates a Ca²⁺ channel in the endoplasmic reticulum.

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