Experiment: 1Z31

The structure of an enzyme-activating fragment of human telomerase RNA

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	PJ6 1 mM unlabeled; 10 mM sodium phoshate, pH 6.0	100% D2O	10 mM	6	1 atm	298
2	2D NOESY	PJ6 1 mM unlabeled; 10 mM sodium phoshate, pH 6.0	100% D2O	10 mM	6	1 atm	298
3	2D NOESY	PJ6 1 mM unlabeled; 10 mM sodium phoshate, pH 6.0, 90% H2O, 10% D2O	90% H2O/10% D2O	10 mM	6	1 atm	277
4	3D_13C-separated_NOESY	PJ6 0.6 mM U-15N,13C; 10 mM sodium phoshate, pH 6.0	100% D2O	10 mM	6	1 atm	298
5	3D_13C-separated_NOESY	PJ6 0.6 mM U-15N,13C; 10 mM sodium phoshate, pH 6.0, 90% H2O, 10% D2O	90% H2O/10% D2O	10 mM	6	1 atm	277
6	IPAP-HSQC	PJ6 0.6 mM U-15N,13C; 10 mM sodium succinate, pH 6.0, 18 mg/ml Pf1 bacteriaphage	100% D2O	10 mM	6	1 atm	298
7	HCP triple resonance	PJ6 0.6 mM U-15N,13C; 10 mM sodium phoshate, pH 6.0	100% D2O	10 mM	6	1 atm	298
8	3D 13C-31P HETCOR	PJ6 0.6 mM U-15N,13C; 10 mM sodium phoshate, pH 6.0	100% D2O	10 mM	6	1 atm	298
9	3D 13C TOCSY-HSQC	PJ6 0.6 mM U-15N,13C; 10 mM sodium phoshate, pH 6.0	100% D2O	10 mM	6	1 atm	298
10	HNN-COSY	PJ6 0.6 mM U-15N,13C; 10 mM sodium phoshate, pH 6.0, 90% H2O, 10% D2O	90% H2O/10% D2O	10 mM	6	1 atm	277

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500
2	Bruker	DMX	750

NMR Refinement
Method	Details	Software
torsion angle dynamics	726 total restraints, 429 NOE-derived restraints, 159 dihedral restraints, 65 residual dipolar coupling restraints, 62 hydrogen bonds, and 11 weak planarity restraints.	XwinNMR

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 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	3.0
2	processing	NMRPipe	2.3	Delaglio
3	structure solution	X-PLOR	2.9.4	Brunger and Clore
4	data analysis	Sparky	3.110	Goddard and Kneller
5	refinement	X-PLOR	2.9.4	Brunger and Clore