Which of the following contains site of attachment of calcium ions that initiates muscle contraction?
Correct Answer: Troponin C
Description: Troponin T binds the troponin components to tropomyosin; troponin I inhibits the interaction of myosin with actin; and troponin C contains the binding sites for the Ca2+ that helps to initiate contraction.
Ganong 23 rd ed, pg 96
Category:
Physiology
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