Key result
AngII- and ACh-induced enhancement of the long-NT isoform of L-VDCC in Xenopus oocytes requires the initial segment of the NT and involves activation of Gq, PLC, and PKC.
Reconstitution of AngII and ACh effects on L-type Ca2+ channels in Xenopus oocytes reveals that the N-terminal segment is crucial for PKC-mediated enhancement, advancing the understanding of molecular mechanisms in cardiovascular physiology.
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No immediate clinical implications; leaves open translation of N-terminal PKC regulation of L-VDCC to mammalian cardiovascular tissues.
Weiss et al. (2004) studied Cardiac Ca2+ Channel Modulation. Angiotensin II and acetylcholine was evaluated on L-VDCC current enhancement. AngII- and ACh-induced enhancement of the long-NT isoform of L-VDCC in Xenopus oocytes requires the initial segment of the NT and involves activation of Gq, PLC, and PKC.
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