Receptor-operated channels ROCs

Ca + mobilized in response to membrane stimuli is derived from either intra- or extracellular sources (Figure 2). Membrane Ca + channels mediating Ca2+ entry have been classified into two major types (18-20). Receptor-operated channels (ROC, Figure 2) are associated with membrane receptors and are activated by specific agonist-receptor interactions, whilst potential-dependent channels (PDC, Figure 2) are activated by membrane depolariza-... 

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