the steps between the binding of agonist to the beta-receptor and the increase in calcium influx can be summarized as follows : agonist binding to beta-receptor greater than adenylate cyclase increases greater than camp increases greater than ca-kinase increases greater than protein phosphorylation greater than altered calcium channel properties greater than ica increases a basal phosphorylation reaction seems not to be a prerequisite for calcium channel function .
C0031727
kinase
C0031715
phosphorylation