Biochemistry – MCQ 83 – Calcium dependent regulatory protein

A small calcium binding protein that modifies the activity of many enzymes and other proteins in response to changes of Ca2+ concentration, is known as:
A. Cycline
B. Calmodulin
C. Collagen
D. Kinesin

Correct answer : B. Calmodulin

Calmodulin is a calcium dependent regulatory protein which activates enzymes and ion channels.