2N5T

Ensemble solution structure of the phosphoenolpyruvate-Enzyme I complex from the bacterial phosphotransferase system

SOLUTION NMR - SOLUTION SCATTERING

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	ARTSY	0.4 mM [U-13C; U-15N; U-2H] EIA, 20 mM TRIS, 1 mM EDTA, 100 mM sodium chloride, 2 mM DTT	90% H2O/10% D2O	0.1	7.4	ambient	310
2	2D 1H-15N HSQC	0.4 mM [U-13C; U-15N; U-2H] EIA, 20 mM TRIS, 1 mM EDTA, 100 mM sodium chloride, 2 mM DTT	90% H2O/10% D2O	0.1	7.4	ambient	310

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	800

NMR Refinement
Method	Details	Software
simulated annealing	The deposited structures represent two-membered ensembles with varying weights which must be considered together to properly reproduce the RDC and SAXS data. The first members of 10 ensembles are reported in models 1-10 which were allowed rigid-body motion of subunits, arbitrary motion of linker regions and torsion degrees of freedom for sidechains. The second member of each ensemble is represented in model 11, which was fixed in the calculations. The ten pairs of weights for the ten ensemble members are Ensemble 1: MODEL 1, weight: 0.503 MODEL 11, weight: 0.497 Ensemble 2: MODEL 2, weight: 0.518 MODEL 11, weight: 0.482 Ensemble 3: MODEL 3, weight: 0.526 MODEL 11, weight: 0.474 Ensemble 4: MODEL 4, weight: 0.520 MODEL 11, weight: 0.480 Ensemble 5: MODEL 5, weight: 0.508 MODEL 11, weight: 0.492 Ensemble 6: MODEL 6, weight: 0.531 MODEL 11, weight: 0.469 Ensemble 7: MODEL 7, weight: 0.498 MODEL 11, weight: 0.501 Ensemble 8: MODEL 8, weight: 0.524 MODEL 11, weight: 0.476 Ensemble 9: MODEL 9, weight: 0.514 MODEL 11, weight: 0.486 Ensemble 10: MODEL 10, weight: 0.526 MODEL 11, weight: 0.474	Xplor-NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	11
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	Sparky		Goddard
2	refinement	Xplor-NIH		Schwieters, Kuszewski, Tjandra and Clore
3	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4	collection	TopSpin		Bruker Biospin

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.