Which protein is both structural and enzymati | vedclass

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(B) $Myosin$ is a protein that serves both structural and enzymatic functions.$1$. Structural role: $Myosin$ filaments form the anisotropic $(A)$ band

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Myosin

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(B) $Myosin$ is a protein that serves both structural and enzymatic functions.$1$. Structural role: $Myosin$ filaments form the anisotropic $(A)$ band in muscle fibers and are essential components of the sarcomere structure.$2$. Enzymatic role: The head of the $Myosin$ molecule possesses $ATPase$ activity,which hydrolyzes $ATP$ to provide the energy required for muscle contraction. The cross-bridges formed by $Myosin$ heads interact with actin filaments to facilitate the sliding filament mechanism.

Which protein is both structural and enzymatic?

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$A -$ Calcium ions $(Ca^{2+})$ activate the interaction between myosin and actin filaments.
$R -$ The cross-bridge is formed in the presence of $ATP,$ and the breaking of the cross-bridge also requires the binding of a new $ATP$ molecule.

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