Experiment: 1Z4H

The response regulator TorI belongs to a new family of atypical excisionase

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	1.5mM TorI U-15N, 50mM phosphate buffer	90% H20, 10% D20		5.9	ambient	278
2	3D HNCO	1.5mM TorI U-15N,13C, 50mM phosphate buffer, 90% H20, 10% D20	90% H20, 10%D2O		5.9	ambient	278
3	3D HNCA	1.5mM TorI U-15N,13C, 50mM phosphate buffer, 90% H20, 10% D20	90% H20, 10%D2O		5.9	ambient	278
4	CBCA(CO)NH	1.5mM TorI U-15N,13C, 50mM phosphate buffer, 90% H20, 10% D20	90% H20, 10%D2O		5.9	ambient	278
5	HN(CO)CA	1.5mM TorI U-15N,13C, 50mM phosphate buffer, 90% H20, 10% D20	90% H20, 10%D2O		5.9	ambient	278
6	HCCH-TOCSY	1.5mM TorI U-13C, 50mM phosphate buffer	90% H20, 10% D20		5.9	ambient	278
7	2D NOESY	1.5mM TorI unlabelled, 50mM phosphate buffer	90% H20, 10% D20		5.9	ambient	278
8	2D TOCSY	1.5mM TorI unlabelled, 50mM phosphate buffer	90% H20, 10% D20		5.9	ambient	278
9	3D_13C-separated_NOESY	1.5mM TorI U-13C, 50mM phosphate buffer	90% H20, 10% D20		5.9	ambient	278
10	HNHA	1.5mM TorI U-15N, 50mM phosphate buffer	90% H20, 10% D20		5.9	ambient	278

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DRX	500
2	Varian	INOVA	800

NMR Refinement
Method	Details	Software
non-bonded interaction for simulated annealing and refinement in an explicit water box.	1341 restraints: 1173 distance restraints + 68 dihedral angle constraints from TALOS + 100 dihedral angle constraints from CSI and 3JHNHa.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	100
Conformers Submitted Total Number	17
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	Structure calculations were performed with ARIA 1.2 using noe's, phi angle dihedral restraints estimated from 3JHNHa and TALOS-derived dihedral angle constraints.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	XwinNMR	3.1	Bruker
2	data analysis	Felix	2002	Accelrys
3	structure solution	CNS	ARIA 1.2	Brunger/Nilges
4	refinement	CNS	ARIA 1.2