MCAT Question of the Day
    •

    Q:

    		 Which amino acid is NOT a common site of phosphorylation?
    		 

    A

    		 Tyrosine

    B

    		 Serine

    C

    		 Threonine

    D

    		 Phenylalanine



    Protein Structure and Function |
    Subscribe


    Is Your Score Stuck?

    We can teach you how to crush the MCAT!

    Learn More