1NZ9

Solution Structure of the N-utilization substance G (NusG) C-terminal (NGC) domain from Thermus thermophilus

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	2mM NusG C-domain, 50mM phosphate buffer, 100mM KCL, 95% H2O, 5% D2O	95% H2O/5% D2O	50mM phospahte, 100mM KCl	5.5	ambient	318
2	HSQC	2mM 15N NusG C-domain, 50mM phosphate buffer, 100mM KCL	100% D2O	50mM phospahte, 100mM KCl	5.5	ambient	318
3	HMQC-J	2mM 15N NusG C-domain, 50mM phosphate buffer, 100mM KCL, 95% H2O, 5% D2O	95% H2O/5% D2O	50mM phospahte, 100mM KCl	5.5	ambient	318

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

NMR Refinement
Method	Details	Software
simulated annealing, molecular dynamics, torsion angle dynamics	566 UNAMBIGUOUS NOE DISTANCE RESTRAINTS, 52 HYDROGEN BOND RESTRAINTS, 46 HN-N DIPOLAR COUPLINGS, NO RESONANCES WERE ASSIGNED FOR ALA 127	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy, NONE WITH DISTANCE VIOLATIONS > 0.2 ANGSTROMS, NONE WITH DIHEDRAL ANGLE RESTRAINT VIOLATIONS > 2 DEGREES
Conformers Calculated Total Number	90
Conformers Submitted Total Number	31
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	Model 31 is the minimized average structure

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	XwinNMR	2.6	Bruker
2	data analysis	ANSIG	3.3	Kraulis
3	structure solution	CNS	1.1	Brunger
4	refinement	CNS	1.1

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 R01GM157729.