Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because

Question:Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because

1.changes the shape and thus the enzymatic activity of the proteins involved

2.makes the receptor more likely to capture the signaling, molecule

3.allows hydrophilic signaling molecules to cross the plasma membrane

4.None of the above

Answer:1