6BV7

NMR structure of Sodium/Calcium Exchanger 1 (NCX1) Two-helix Bundle (THB) domain

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	300 uM [U-15N] NCX1_THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 850
2	2D 1H-13C HSQC	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	100% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 850
3	3D HNCA	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
4	3D HN(CO)CA	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
5	3D HNCO	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
6	3D HNCACO	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
7	3D HNCACB	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
8	3D HN(COCA)CB	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
9	3D HCCH-TOCSY	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	100% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
10	3D HCCH-TOCSY	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	100% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
11	3D H(CO)NH-TOCSY	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
12	3D (H)CC(CO)NH-TOCSY	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
13	2D aromatic TROSY-HSQC	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	100% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
14	2D 1H-1H NOESY	300 uM NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	100% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
15	3D HNHB	300 uM [U-15N] NCX1_THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
16	2D DQF-COSY	300 uM NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	100% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
17	2D 10%-13C CT-HSQC	300 uM [U-10% 13C] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	100% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 700
18	3D 15N-edited NOESY	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 850
19	3D 15N-edited CNH-NOESY	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	90% H2O/10% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 850
20	3D 13C-edited NOESY	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	100% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 850
21	3D 13C-edited CCH-NOESY	300 uM [U-13C; U-15N] NCX1 THB, 100 mM sodium chloride, 20 mM sodium phosphate	100% D2O	100 mM NaCl, 20 mM Sodium Phosphate mM	7.0	1 atm	298	Bruker AVANCE III 850

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	850
2	Bruker	AVANCE III	700

NMR Refinement
Method	Details	Software
simulated annealing		CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
2	data analysis	NMRDraw		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	data analysis	Sparky		Goddard
5	data analysis	NMRView		Johnson, One Moon Scientific
4	refinement	CNS		Brunger, Adams, Clore, Gros, Nilges and Read
6	structure calculation	CNS		Brunger, Adams, Clore, Gros, Nilges and Read