1. Programa Institucional de Fomento a la Investigacion, Desarrollo e Innovacion (PIDi), Universidad Tecnologica Metropolitana, Santiago 8940577, Chile
2. Department of Anatomy and Physiology, Kansas State University, Manhattan, 66506-580, Kansas, USA
3. Center for Bioinformatics and Molecular Simulation, Facultad de Ingenieria, Universidad de Talca, 2 Norte 685, Talca, Chile
4. Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Talca, Chile