Practice question
Question
Which enzyme converts PI(4,5)P₂ to PI(3,4,5)P₃?
Explanation
PI3-kinase, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.