1O53

Solution structure of the N-terminal membrane anchor of E. coli enzyme IIA(Glucose)

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY, TOCSY, DQF-COSY	natural abundance synthetic peptide 5 mM peptide and 50 mM dihexanoyl phosphatidylglycerol	90% H2O and 10% D2O	no buffer	5.4	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600

NMR Refinement
Method	Details	Software
simulated annealing	The structures are based on 146 distances derived from the NOESY spectra. No dihedral angles or hydrogen-bond restraints were applied.	NMRPipe/nmrDraw

NMR Ensemble Information
Conformer Selection Criteria	No NOE violations greater than 0.20 A; rms difference for bond deviations from ideality less than 0.01 A; rms difference for angle deviations from ideality less than 2 degrees; Structures with the lowerest energies in the ensemble; Structures most resemble the average structure.
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (most resemble the average structure.)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear NMR techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	data processing	NMRPipe/nmrDraw	2.1	Delaglio, F.
2	noe picking	PIPP	1.0	Garrett, D.
3	structural calculations	XPLOR-NIH	1.06	Schwieters, C.D., Kuszewski, J., Tjandra, N, Clore, G.M.
4	structural analysis and viewing	MOLMOL	2K.1	Koradi, R.

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.