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The junction between the transverse tubules (T-tubules) and the sarcoplasmic reticulum (SR) of skeletal muscle is called the triad. At the triad, dihydropyridine receptors (DHPR’s) of the T-tubule serve as voltage sensors in excitation-contraction coupling, while ryanodine receptors (RyR’s), the calcium release channels, exist in the membrane of the terminal cisternae of the SR. It is thought that during slow phase depolarization of the T-tubule, a third protein, triadin (MW 95 kDa) transmits electrochemical signals to the SR through direct interaction with both DHPR’s and RyR’s. Though its exact role in this signaling process is unclear, triadin has been shown to co-localize with both DHPR and RYR at the junctional face of the terminal cisternae.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: Triadin; triadin 1; triadin 32 kDa (TRISK 32); triadin 49 kDa (TRISK 49); triadin 95
基因别名: Trdn
UniProt ID: (Rat) Q9QX75
Entrez Gene ID: (Rat) 59299