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Which mineral is key in muscle contraction due to it's affinity to troponin?
Wiki User
∙ 12y ago
Calcium ions
Wiki User
∙ 12y ago
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What is the molecular composition of troponin?
Troponin is a major component of muscle tissue. It is composed of troponin C, troponin I, and troponin T. Troponin interacts with tropomyosin and myosin to create muscle contraction.
During muscle contraction....... attach to ...............?
Troponin
During muscle contraction calcium attaches to what?
Troponin
What is the function of troponin in muscle contractions?
It is involved in the regulation of the contraction of a cross-striated muscle.
What is the role of calcium ions in muscle contraction?
They bind to regulatory sites on troponin to remove contraction inhibition
What Steps in muscle contraction require calcium ions?
Calcium ions bind to troponin, changing troponin's shape
Role of ionic calcium in muscle contraction?
triggers neurotransmitter secretion, removes contraction inhibitor, and binds with troponin.
In muscle contraction calcium apparently acts to?
Muscle contraction is regulated by calcium ions, which will change thin filament into an activated state by binding to troponin. The binding of calcium to the troponin changes it's shape so the myosin binding sites on the actin (thin filament) are exposedbind to regulatory sites on troponin to remove contraction inhibition
What other protein is involved in skeletal muscle contraction?
Myosin and actin
What is the role of the triad in muscle contraction?
Once a triad has been achieved, Calcium ions get released. Once they're released they bind to troponin, which helps begin muscle contraction.
The Ca2 that binds to troponin to activate muscle contraction comes from the storage sites located in the what?
sarcoplasmic reticulum
Is tropomyosin found in smooth muscle?
smooth muscle doesn't have troponin, instead it has caldmodulin
