2MWH

NMR solution structure of ligand-free OAA

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	100% D2O		5	ambient	298
2	2D 1H-13C HSQC aliphatic	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	100% D2O		5	ambient	298
3	2D 1H-13C HSQC aromatic	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	100% D2O		5	ambient	298
4	3D HNCA	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	90% H2O/10% D2O		5	ambient	298
5	3D HNCO	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	90% H2O/10% D2O		5	ambient	298
6	3D HCCH-TOCSY	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	100% D2O		5	ambient	298
7	3D 1H-15N NOESY	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	90% H2O/10% D2O		5	ambient	298
8	3D 1H-13C NOESY aliphatic	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	90% H2O/10% D2O		5	ambient	298
9	3D 1H-13C NOESY aromatic	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	90% H2O/10% D2O		5	ambient	298
10	2D 1H-15N IPAP-HSQC	2 mM [U-100% 13C; U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide	90% H2O/10% D2O		5	ambient	298
11	2D 1H-15N IPAP-HSQC	500 uM [U-100% 15N] OAA, 20 mM sodium chloride, 20 mM sodium acetate, 3 mM sodium azide, 5 % w/w (C8E5/water) N-octylpentaoxyethylene, 0.87 molar ratio C8E5/octanol octanol	90% H2O/10% D2O		5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	700
3	Bruker	AVANCE	800
4	Bruker	AVANCE	900

NMR Refinement
Method	Details	Software
simulated annealing		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	data analysis	CARA		Keller and Wuthrich
4	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore