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. 2010 Jul 2;5(7):e11421. doi: 10.1371/journal.pone.0011421

Figure 4. Schematic explanation of beta1-adrenoceptor and flecainide interaction.

Figure 4

Localisation of P49 on N-terminus and P389 on C-terminus. β1AR activation results via G protein (Gs) and adenylate cyclase (AC) pathway in increase of cyclic adenosine monophosphate (cAMP) and activation of protein kinase A (PKA). PKA induced phosphorylation inactivates INa channel activity. Flecainide inhibits INa directly.