2LRL

Solution Structures of the IIA(Chitobiose)-HPr complex of the N,N'-Diacetylchitobiose Branch of the Escherichia coli Phosphotransferase System

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O	95% H2O/5% D2O	0.02	7.4	ambient	308
2	3D CBCA(CO)NH	1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O	95% H2O/5% D2O	0.02	7.4	ambient	308
3	3D HN(COCA)CB	1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O	95% H2O/5% D2O	0.02	7.4	ambient	308
4	3D HNCA	1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O	95% H2O/5% D2O	0.02	7.4	ambient	308
5	c13-c12 edited/filted NOESY	1.0 mM [U-99% 13C; U-99% 15N] protein, 1.0 mM D2O	95% H2O/5% D2O	0.02	7.4	ambient	308

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	800
3	Bruker	AVANCE	900

NMR Refinement
Method	Details	Software
torsion angle dynamics	conjoined rigid body/torsion angle simulated annealing	X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	geometry optimization	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
2	data analysis	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
3	chemical shift assignment	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
4	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.