2JSX

Solution structure of the E. coli Tat proofreading chaperone protein NapD

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
2	3D HNCACB	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
3	3D CBCA(CO)NH	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
4	3D HBHA(CBCACO)NH	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
5	3D HN(CA)HA	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
6	3D 1H-15N NOESY	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
7	3D 1H-13C NOESY	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
8	3D 1H-13C NOESY aromatic	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
9	3D HCCH-TOCSY	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
10	3D HCCH-TOCSY	0.5 mM [U-100% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298
11	2D 1H-13C HSQC constant time	0.5 mM [U-10% 13C; U-100% 15N] NapD, mM , mM , mM	95% H2O/5% D2O		7.4		298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Varian	INOVA	800

NMR Refinement
Method	Details	Software
simulated annealing, molecular dynamics	Distance restraints were derived using AtnosCandid automated NOE assignment procedures. Restraints were loosened with 0.2Angstrom upper bound correction and used to calculate 100 structures using simulated annealing in XPLOR-NIH, followed by refinement in explicit solvent.	XEASY

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	data analysis	XEASY		C Bartels et al.
2	data analysis	AtnosCandid		Herrmann, T., G ntert, P. & W thrich, K.
3	structure solution	CYANA		P Guntert, C Mumenthaler and K Wuthrich
4	refinement	X-PLOR NIH		CD Schwieters, JJ Kuszewski, N Tjandra and GM Clore
5	refinement	WHAT IF		G Vriend
6	refinement	YASARA		E. Krieger, Yasara Biosciences