Experiment: 1IQS

Minimized average structure of MTH1880 from Methanobacterium Thermoautotrophicum

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	2mM MTH1880 U-15N,13C; 25mM phosphate buffer, 300mM NaCl; 90% H2O, 10% D2O	90% H2O/10% D2O		7.6	ambient	298
2	3D_15N-separated_NOESY	2mM MTH1880 U-15N; 25mM phosphate buffer, 300mM NaCl; 90% H2O, 10% D2O	90% H2O/10% D2O		7.6	ambient	298
3	HNHA	2mM MTH1880 U-15N; 25mM phosphate buffer, 300mM NaCl; 90% H2O, 10% D2O	90% H2O/10% D2O		7.6	ambient	298
4	2D_15N HSQC for H/D exchange	1mM MTH1880 U-15N; 25mM phosphate buffer, 300mM NaCl; 100% D2O	100% D2O		7.6	ambient	298

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

NMR Refinement
Method	Details	Software
distance geometry simulated annealing molecular dynamics matrix relaxation torsion angle dynamics	the structures are based on a total of 762 restraints, 669 are NOE-derived distance constraints, 39 dihedral angle restraints,54 distance restraints from hydrogen bonds.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	This model is the minimized average structure from 20 structures with the lowest energy
Conformers Calculated Total Number	1
Conformers Submitted Total Number	1
Representative Model	1 (minimized average structure)

Additional NMR Experimental Information
Details	The structure was determined using triple-resonance NMR spectroscopy.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.6	Bruker Inc.
2	collection	VNMR	6.1B	Varian Inc.
3	processing	NMRPipe	1.8	Delaglio
4	data analysis	Sparky	3.98	James
5	refinement	CNS	1.0	Brunger
6	structure solution	Insight II	2000	MSI Inc.
7	structure solution	MOLMOL	2.6.0	Wuthrich