2MBK

The Clip-segment of the von Willebrand domain 1 of the BMP modulator protein Crossveinless 2 is preformed

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H TOCSY	2 mM CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
2	2D DQF-COSY	2 mM CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
3	2D 1H-1H NOESY	2 mM CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
4	3D 1H-15N NOESY	1.5 mM [U-99% 15N] CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
5	3D 1H-15N TOCSY	1.5 mM [U-99% 15N] CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
6	3D CBCA(CO)NH	2 mM [U-99% 13C; U-99% 15N] CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
7	3D HNCACB	2 mM [U-99% 13C; U-99% 15N] CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
8	3D HNCO	2 mM [U-99% 13C; U-99% 15N] CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
9	3D HN(CA)CO	2 mM [U-99% 13C; U-99% 15N] CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
10	3D HBHA(CO)NH	2 mM [U-99% 13C; U-99% 15N] CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300
11	3D H(CCO)NH	2 mM [U-99% 13C; U-99% 15N] CV2 VWC1, 20 mM sodium phosphate, 20 mM sodium chloride, 5 % [U-2H] D2O, 0.2 % sodium azide	95% H2O/5% D2O	0.04	6.6	ambient	300

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	900

NMR Refinement
Method	Details	Software
simulated annealing		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (fewest violations)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin	2.1	Bruker Biospin
2	processing	TopSpin	2.1	Bruker Biospin
3	data analysis	AURELIA	3.85	Neidig, Geyer, Gorler, Antz, Saffrich, Beneicke, Kalbitzer
4	chemical shift assignment	AURELIA	3.85	Neidig, Geyer, Gorler, Antz, Saffrich, Beneicke, Kalbitzer
5	structure solution	X-PLOR NIH	2.29	Schwieters, Kuszewski, Tjandra and Clore
6	refinement	X-PLOR NIH	2.29	Schwieters, Kuszewski, Tjandra and Clore

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.