1 | 0.2 mM [U-100% 15N] N116 A7C, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA, 10 % [U-100% 2H] D2O, 90 % H2O, 0.2 mM 1-oxyl-2, 2, 5, 5-tetramethyl-3-pyrroline-3-methylmethanethiosulfonate, 1 mM ascorbate, 90% H2O/10% D2O | 90% H2O/10% D2O2 | 1 mM [U-100% 13C; U-100% 15N] N116, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA, 10 % [U-100% 2H] D2O, 90 % H2O, 90% H2O/10% D2O | 90% H2O/10% D2O3 | 0.2 mM [U-100% 15N] N116 A7C, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA, 10 % [U-100% 2H] D2O, 90 % H2O, 0.2 mM 1-oxyl-2, 2, 5, 5-tetramethyl-3-pyrroline-3-methylmethanethiosulfonate, 90% H2O/10% D2O | 90% H2O/10% D2O4 | 1 mM [U-100% 13C; U-100% 15N] N116, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA, 100 % [U-100% 2H] D2O, 100% D2O | 100% D2O5 | 1 mM [U-100% 15N] N116, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA, 10 % [U-100% 2H] D2O, 90 % H2O, 90% H2O/10% D2O | 90% H2O/10% D2O6 | 1 mM [U-100% 15N] N116, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA, 10 % [U-100% 2H] D2O, 90 % H2O, 7 or 8 % polyacrylamide gel, 90% H2O/10% D2O | 90% H2O/10% D2O7 | 0.2 mM [U-100% 15N] N116 A11C, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA, 10 % [U-100% 2H] D2O, 90 % H2O, 0.2 mM 1-oxyl-2, 2, 5, 5-tetramethyl-3-pyrroline-3-methylmethanethiosulfonate, 90% H2O/10% D2O | 90% H2O/10% D2O8 | 0.2 mM [U-100% 15N] N116 A11C, 20 mM sodium phosphate, 50 mM sodium chloride, 1 mM EDTA, 10 % [U-100% 2H] D2O, 90 % H2O, 0.2 mM 1-oxyl-2, 2, 5, 5-tetramethyl-3-pyrroline-3-methylmethanethiosulfonate, 1 mM ascorbate, 90% H2O/10% D2O | 90% H2O/10% D2O | | | | | | | |