1ZG2

Solution NMR structure of the UPF0213 protein BH0048 from Bacillus halodurans. Northeast Structural Genomics target BhR2.

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	0.67 mM U-13C,15N BhR2, 20mM MES, 100mM NaCl, 5mM CaCl2, 10mM DTT, 0.02% NaN3, pH 6.5	5% D2O/95% H2O	100 mM NaCl	6.5	ambient	293
2	3D_13C-separated_NOESY	0.67 mM U-13C,15N BhR2, 20mM MES, 100mM NaCl, 5mM CaCl2, 10mM DTT, 0.02% NaN3, pH 6.5	5% D2O/95% H2O	100 mM NaCl	6.5	ambient	293
3	3D_13C-separated_NOESY	0.67 mM U-13C,15N BhR2, 20mM MES, 100mM NaCl, 5mM CaCl2, 10mM DTT, 0.02% NaN3, pH 6.5	100% D2O	100 mM NaCl	6.5	ambient	293
4	HNHA	0.67 mM U-13C,15N BhR2, 20mM MES, 100mM NaCl, 5mM CaCl2, 10mM DTT, 0.02% NaN3, pH 6.5	5% D2O/95% H2O	100 mM NaCl	6.5	ambient	293
5	high resolution CH-HSQC	0.56 mM U-15N,5% 13C BhR2, 20mM MES, 100mM NaCl, 5mM CaCl2, 10mM DTT, 0.02% NaN3, pH 6.5	5% D2O/95% H2O	100 mM NaCl	6.5	ambient	293
6	backbone TR expts, TOCSYs, HCCH COSY	0.67 mM U-13C,15N BhR2, 20mM MES, 100mM NaCl, 5mM CaCl2, 10mM DTT, 0.02% NaN3, pH 6.5	5% D2O/95% H2O	100 mM NaCl	6.5	ambient	293

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500
2	Varian	INOVA	500
3	Varian	INOVA	600
4	Varian	INOVA	750

NMR Refinement
Method	Details	Software
simulated annealing	The structures are based on a total of 835 conformationally-restricting NOE-derived distance constraints, 250 dihedral angle constraints, and 52 hydrogen bond constraints (12.2 constraints per residue excluding tags; 2.9 long range constraints per residue). Structure determination was performed iteratively using AUTOSTRUCTURE (Xplor). The 10 lowest energy structures were further refined by restrained molecular dyanmics/energy minimization in explicit water (CNS). The unstructured N- (MAGDP) and C- (LEHHHHHH) terminal tags were included in all calculations but have been omitted from this deposition.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	56
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Additional NMR Experimental Information

Details

The structure was determined using triple resonance NMR spectroscopy. Partial automated backbone assignments were made using AUTOASSIGN, and the assignments were completed manually. Automatic NOESY assignments as well as distance and hydrogen bond constraints were determined using AUTOSTRUCTURE. Dihedral angle constraints were determined using HYPER and Talos. Completeness of NMR assignments (excluding N- and C-tags): backbone, 98%; side chain, 86%, aromatics, 100%; stereospecific methyl, 100%. Final structure quality factors (excluding the tags), where ordered residues [S(PHI) + S(PSI) > 1.8] comprise 7-16,19-25,27-38,51-85: (A) RMSD (6-30,48-86): BB 1.0; heavy atom, 1.6. FindCore RMSD: BB, 0.63; heavy atom, 0.86. (B) Ramachandran statistics for ordered residues: most favored, 96.7%, additionally allowed, 3.3%, generously allowed, 0.0%, disallowed, 0.0%. (C) Procheck scores for ordered residues (Raw/Z-): Phi-Psi, 0.02/0.39; All, -0.10/-0.59. (D) MolProbity clash score (Raw/Z-): 24.24/-2.63. (E) RPF scores for goodness of fit to NOESY data: F-measure, 0.916; Recall, 0.922; Precision, 0.910; DP-score, 0.663.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	3.5pl6	Bruker
2	collection	VNMR	6.1C	Varian
3	processing	NMRPipe	2.3	Delaglio et al.
4	data analysis	Sparky	3.91	Goddard & Kneller
5	data analysis	AutoAssign	1.15	Zimmerman, Moseley, Montelione
6	refinement	AutoStructure	2.1.0	Huang, Montelione
7	refinement	XPLOR-NIH	2.0.6	Clore et al.
8	refinement	CNS	1.1	Brunger et al.
9	data analysis	PdbStat	3.25	Tejero & Montelione
10	data analysis	PSVS	1.0	Bhattacharya & Montelione
11	data analysis	FindCore	1.0	Snyder & Montelione