2JZN

Solution NMR structure of the productive complex between IIAMannose and IIBMannose of the mannose transporter of the E. coli phosphotransferase system

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	12C-filtered/13C-separated NOE	0.5-1 mM see details IIAMan(H10E)+IIBMan	100% D2O	20 mM phosphate	6.5	ambient atm	303
2	15N-SEPARATED/13C-EDITED NOE	0.5-1 mM see details IIAMan(H10E)+IIBMan	90% H2O/10% D2O	20 mM phosphate	6.5	ambient atm	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX500	500
2	Bruker	DMX600	600
3	Bruker	DRX600	600
4	Bruker	DRX800	800

NMR Refinement
Method	Details	Software
conjoined rigid body/torsion angle simulated annealing	Coordinates of IIAMan (1PDO) and IIBMan (2JZH) are treated as rigid bodies with the interfacial side chains given torsional degrees of freedom. Residues 130-134 of IIAMan are also given torsional degrees of freedom since intermolecular NOEs were observed involving these residues although they are not visible in the electron density map of the X-ray structure of free IIAMan. Further details in publication.	X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	restrained regularized mean
Conformers Calculated Total Number	120
Conformers Submitted Total Number	1
Representative Model	1 (minimized average structure)

Additional NMR Experimental Information
Details	Triple resonance experiments for assignment. Quantitative J correlation experiments for heteronuclear scalar couplings. 3D and 2D isotope filtered/isotope-separated NOE experiments for intermolecular NOEs.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR NIH	2.18.1	Schwieters, Kuszewski, and Clore
2	refinement	X-PLOR NIH	2.18.1	Schwieters, Kuszewski, and Clore