Imagine a protein that can be independently phosphorylated on any of its 10 tyrosine residues and acetylated on either of its 2 lysine residues. In principle, how many different combinations of these modifications are possible for this protein?
A) 2¹⁰
B) 2²⁰
C) 10¹⁰
D) 12²⁰
E) 2¹²

Question

Quizplus · Accepted Answer

Each modification can have two different states, which therefore doubles the number of combinations.

Imagine a Protein That Can Be Independently Phosphorylated on Any