Arginine-specific cysteine proteinase (Arg-gingipain)

1 mM [U-13C; U-15N] RgpB-CTD (G662-K736), 20 mM sodium phosphate, 50 mM sodium chloride, 2 mM sodium azide, 90% H2O/10% D2O

Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax

Brunger, Adams, Clore, Gros, Nilges and Read