2A05

The cysteine-rich secretory protein domain of Tpx-1 is related to ion channel toxins and regulates Ryanodine receptor Ca2+ signaling

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	1mM TpX-1 U-15N 90% H2O 10% D2O		1mM	5.8	ambient	298
2	3D_15N-separated TOCSY	1mM TpX-1 U-15N 90% H2O 10% D2O		1mM	5.8	ambient	298
3	2D NOESY	1mM TpX-1 90% H2O 10% D2O		1mM	5.8	ambient	298
4	2D TOCSY	1mM TpX-1 100% D2O		1mM	5.8	ambient	298
5	DQF-COSY	1mM TpX-1 100% D2O		1mM	5.8	ambient	298
6	2D NOESY	1mM TpX-1 100% D2O		1mM	5.8	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500
2	Bruker	DRX	500
3	Bruker	DRX	500

NMR Refinement
Method	Details	Software
Automated Resonance assignment using Torsion Angle Dynamics (CANDID), Further refinement with CA and CB chem shifts and database potentials	NOES: 187 intra 251 short 253 med 188 long. 78 Chem shifts	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	violations <0.2A NOE, total energy
Conformers Calculated Total Number	49
Conformers Submitted Total Number	23
Representative Model	1 (lowest target function)

Additional NMR Experimental Information
Details	Standard 2D/3D methods

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	1	Bruker
2	processing	XwinNMR	1	Bruker
3	data analysis	Sparky	3.101	Goddard Keller
4	refinement	CYANA	1.06	Guntert
5	refinement	XPLOR-NIH	2.9.9	Clore Schwieters Kuszewski Tjandra

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.