Gravel AE, Arnold AA, Dufourc EJ, Marcotte I. An NMR investigation of the structure, function and role of the hERG channel selectivity filter in the long QT syndrome. Biochimica et Biophysica Acta (BBA) - Biomembranes. 2013 Jun;1828(6):1494–502. doi: 10.1016/j.bbamem.2013.02.012.