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  • Title: Molecular aspects of the excitation-contraction coupling in skeletal muscle.
    Author: Iino M.
    Journal: Jpn J Physiol; 1999 Aug; 49(4):325-33. PubMed ID: 10529492.
    Abstract:
    Extremely rapid and massive release of Ca(2+) from the sarcoplasmic reticulum upon depolarization of the T-tubule regulates the contraction of skeletal muscle. The dihydropyridine receptor (voltage sensor) on the T-tubule faces the ryanodine receptor (Ca(2+) release channel) on the sarcoplasmic reticulum at the triadic junction and their intermolecular interaction is responsible for the swift release of Ca(2+) from the sarcoplasmic reticulum. We are now beginning to gain insight into the molecular structures that are important for the coupling mechanism.
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