Which molecules are involved with regulation of cross bridge attachment activity?

Question

Quizplus · Accepted Answer

Calcium ions and troponin are both crucial in the regulation of cross bridge attachment activity in muscle contraction. Calcium ions bind to troponin, causing a conformational change that allows for the exposure of the myosin-binding sites on the actin filaments. This ultimately leads to cross bridge attachment and muscle contraction. Myosin is involved in the actual cross bridge interaction with actin, but it is not directly involved in the regulation of this process.

Which Molecules Are Involved with Regulation of Cross Bridge Attachment