The article Toustrup-Jensen, M.S., Holm, R., Einholm, A.P., Schack, V.R., Morth, J.P., Nissen, P., Andersen, J.P., Vilsen, B. 2009 The C-terminus of Na+,K+-ATPase controls Na+ affinity on both sides of the membrane through Arg935. The Journal of Biological Chemistry 284:18715-25. Selected as JBC Paper of the Week