Cardiac Na(v)1.5 Channel (IMAGE) Rockefeller University Press Caption This is an illustration of the cardiac Nav1.5 channel. The red circles indicate the locations of the R222Q and R225W mutations in the voltage-sensing region of domain 1 (DI). Credit Moreau et al., 2015 Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.