7BGH

Solution structure of the chloroplast outer envelope channel OEP21

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N TROSY HSQC	0.4 mM [U-13C; U-15N; U-2H] OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 800
2	3D HNCA	0.4 mM [U-13C; U-15N; U-2H] OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 800
3	3D HNCACB	0.4 mM [U-13C; U-15N; U-2H] OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 800
4	3D HNCO	0.4 mM [U-13C; U-15N; U-2H] OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 800
10	3D HNCACO	0.4 mM [U-13C; U-15N; U-2H] OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 800
5	3D HN(CO)CA	0.4 mM [U-13C; U-15N; U-2H] OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 800
6	3D 1H-15N NOESY	0.4 mM [U-13C; U-15N; U-2H] OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 800
13	2D 1H-15N TROSY HSQC	0.4 mM [ U-15N; U-2H],ILVAFY OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 900
11	2D 1H-13C HMQC	0.4 mM [ U-15N; U-2H],ILVAFY OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 900
7	3D 1H-15N NOESY	0.4 mM [ U-15N; U-2H],ILVAFY OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 900
8	3D 1H-13C NOESY aliphatic	0.4 mM [ U-15N; U-2H],ILVAFY OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 900
9	3D 13C-13C NOESY aliphatic	0.4 mM [ U-15N; U-2H],ILVAFY OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 800
12	3D 13C-15N NOESY aliphatic	0.4 mM [ U-15N; U-2H],ILVAFY OEP21, 300 mM [U-100% 2H] LDAO, 20 mM sodium phosphate, 50 mM sodium chloride, 5 mM DTT, 0.5 mM EDTA	95% H2O/5% D2O	100 mM	7.0	1 atm	308	Bruker AVANCE III HD 800

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
2	Bruker	AVANCE III HD	900
3	Bruker	AVANCE III HD	800

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	processing	TopSpin		Bruker Biospin
5	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
6	processing	hmsIST		Wagner Lab, Harvard Medical School
3	chemical shift assignment	NMRFAM-SPARKY		Univ of Wisconsin
4	peak picking	NMRFAM-SPARKY		Univ of Wisconsin
7	structure calculation	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
8	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore