Key result
The alpha(1S) III-IV loop is not directly involved in excitation-contraction coupling but influences DHPR gating transitions important for EC coupling and activation of L-type conductance.
The alpha(1S) III-IV loop is not directly involved in excitation-contraction coupling but influences DHPR gating transitions important for EC coupling and activation of L-type conductance.
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No immediate clinical implications for muscle disorders; extends DHPR gating models but leaves open human translation.
Bannister et al. (2008) studied Skeletal muscle excitation-contraction coupling. GFP-alpha(1S)[III-IVa] chimera vs. GFP-alpha(1S) was evaluated on Myoplasmic Ca(2+) transients and L-type currents. The alpha(1S) III-IV loop is not directly involved in excitation-contraction coupling but influences DHPR gating transitions important for EC coupling and activation of L-type conductance.
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