2L5Y

NMR structure of calcium-loaded STIM2 EF-SAM.

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	0.5-0.7 mM [U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-1, 20 mM TRIS-2, 100 mM sodium chloride-3, 10 mM Calcium Ion-4	90% H2O/10% D2O	105	7.5	ambient	288
2	3D CBCA(CO)NH	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-5, 20 mM TRIS-6, 100 mM sodium chloride-7, 10 mM Calcium Ion-8	90% H2O/10% D2O	105	7.5	ambient	288
3	3D HNCACB	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-5, 20 mM TRIS-6, 100 mM sodium chloride-7, 10 mM Calcium Ion-8	90% H2O/10% D2O	105	7.5	ambient	288
4	3D 1H-15N NOESY	0.5-0.7 mM [U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-1, 20 mM TRIS-2, 100 mM sodium chloride-3, 10 mM Calcium Ion-4	90% H2O/10% D2O	105	7.5	ambient	288
5	3D 1H-13C NOESY	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-9, 20 mM TRIS-10, 100 mM sodium chloride-11, 10 mM CALCIUM ION-12	100% D2O	105		ambient	288
6	3D HN(CO)CA	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-5, 20 mM TRIS-6, 100 mM sodium chloride-7, 10 mM Calcium Ion-8	90% H2O/10% D2O	105	7.5	ambient	288
7	3D HNCA	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-5, 20 mM TRIS-6, 100 mM sodium chloride-7, 10 mM Calcium Ion-8	90% H2O/10% D2O	105	7.5	ambient	288
8	3D HNCO	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-5, 20 mM TRIS-6, 100 mM sodium chloride-7, 10 mM Calcium Ion-8	90% H2O/10% D2O	105	7.5	ambient	288
9	3D HBHA(CO)NH	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-5, 20 mM TRIS-6, 100 mM sodium chloride-7, 10 mM Calcium Ion-8	90% H2O/10% D2O	105	7.5	ambient	288
10	2D 1H-13C HSQC	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-9, 20 mM TRIS-10, 100 mM sodium chloride-11, 10 mM CALCIUM ION-12	100% D2O	105		ambient	288
11	3D HCCH-TOCSY	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-9, 20 mM TRIS-10, 100 mM sodium chloride-11, 10 mM CALCIUM ION-12	100% D2O	105		ambient	288
12	3D HCCH-COSY	0.5-0.7 mM [U-99% 13C; U-99% 15N] PROTEIN (Stromal Interaction Molecule 2)-9, 20 mM TRIS-10, 100 mM sodium chloride-11, 10 mM CALCIUM ION-12	100% D2O	105		ambient	288

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

NMR Refinement
Method	Details	Software
torsion angle dynamics, DGSA-distance geometry simulated annealing	Water refinement was performed using the RECOORD scripts (Nederveen et al., 2005) in CNS (v1.1) (Brunger et al., 1998)., Water refinement was performed using the RECOORD scripts (Nederveen et al., 2005) in CNS (v1.1) (Brunger et al., 1998).	CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	400
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CNS	v1.1	Brunger, Adams, Clore, Gros, Nilges and Read
2	structure solution	CYANA	v2.1	Guntert, Mumenthaler and Wuthrich
3	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4	chemical shift assignment	XEASY		Bartels et al.