Experiment: 2MAJ

Solution Structure of the STIM1 CC1-CC2 homodimer.

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	0.5 mM [U-99% 15N] protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	90% H2O/10% D2O	0.02	5.5	ambient	308
2	3D HNCACB	0.5 mM [U-99% 13C; U-99% 15N] protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	90% H2O/10% D2O	0.02	5.5	ambient	308
3	3D CBCA(CO)NH	0.5 mM [U-99% 13C; U-99% 15N] protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	90% H2O/10% D2O	0.02	5.5	ambient	308
4	3D HNCO	0.5 mM [U-99% 13C; U-99% 15N] protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	90% H2O/10% D2O	0.02	5.5	ambient	308
5	3D C(CO)NH TOCSY	0.5 mM [U-99% 13C; U-99% 15N] protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	90% H2O/10% D2O	0.02	5.5	ambient	308
6	3D H(CCO)NH TOCSY	0.5 mM [U-99% 13C; U-99% 15N] protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	90% H2O/10% D2O	0.02	5.5	ambient	308
7	3D 1H-15N NOESY	0.5 mM [U-99% 15N] protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	90% H2O/10% D2O	0.02	5.5	ambient	308
8	2D 1H-13C HSQC	0.5 mM [U-99% 13C; U-99% 15N] protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	100% D2O	0.02	5.5	ambient	308
9	3D 1H-13C NOESY	0.5 mM [U-99% 13C; U-99% 15N] protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	100% D2O	0.02	5.5	ambient	308
10	3D 1H-13C-1H-12C/14N xfilt NOESY	0.5 mM [U-99% 13C; U-99% 15N] protein, 0.5 mM protein, 20 mM bis-TRIS, 0.175 v/v [U-99% 2H] TFE	100% D2O	0.02	5.5	ambient	308

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	800
2	Bruker	AVANCE	600

NMR Refinement
Method	Details	Software
simulated annealing	Used the RECOORD scripts in CNS to water refine the CYANA-determined structures (Nederveen et al., Proteins. 2005 Jun 1;59(4):662-72).	NMRPipe

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	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
2	chemical shift assignment	XEASY		Bartels et al.
3	peak picking	XEASY		Bartels et al.
4	data analysis	TALOS		Cornilescu, Delaglio and Bax
5	geometry optimization	TALOS		Cornilescu, Delaglio and Bax
6	structure solution	CYANA	3.0	Guntert, Mumenthaler and Wuthrich
7	refinement	CNS		Brunger, Adams, Clore, Gros, Nilges and Read
8	geometry optimization	CNS		Brunger, Adams, Clore, Gros, Nilges and Read