You are attempting to crystallize the head group of a myosin-like muscle protein from a newly discovered vertebrate organism. Assuming that the protein structure is similar to other vertebrate myosins, which enzymes should you use to remove the myosin-like head group from the rest of the myosin-like protein?
A) trypsin
B) myosinase
C) papain
D) both trypsin and myosinase
E) both trypsin and papain

Question

Quizplus · Accepted Answer

Trypsin and papain are both proteolytic enzymes capable of cleaving proteins at specific sites, which can be used to isolate the myosin head group from the rest of the protein. Myosinase is not a commonly used enzyme for this purpose.

You Are Attempting to Crystallize the Head Group of a Myosin-Like