Myosin is a contractile protein found in muscles that is composed of three pairs of subunits, two heavy chains, and two pairs of two different types of light chains, for a total of six subunits. Myosin contains what level(s) of protein structure?
A) primary only
B) primary and secondary only
C) primary, secondary, and tertiary only
D) primary, secondary, tertiary, and quaternary

Question

Quizplus · Accepted Answer

Myosin contains all four levels of protein structure - primary, secondary, tertiary, and quaternary. The heavy chains and light chains have their own unique primary and secondary structures, which together form the tertiary and quaternary structures of the myosin protein.

Myosin Is a Contractile Protein Found in Muscles That Is