De-novo Maquette 2 protein with buried ion-pair - Baumgart, M.; Roepke, M.; Muehlbauer, M.; Asami, S.; Mader, S.; Fredriksson, K.; Groll, M.; Gamiz-Hernandez, A. P.; Kaila, V. R.I. (Biological Magnetic Resonance Bank, 2021)