2K5P

NMR Solution Structure of a Thiamine Biosynthesis Protein from Geobacter Metallireducens: Northeast Structural Genomics Consortium Target GmR137

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
2	2D 1H-13C HSQC	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
3	(4,3)D GFT-HNNCABCA	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
4	(4,3)D GFT-CABCA(CO)NHN	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
5	(4,3)D GFT-HABCAB(CO)NHN	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
6	3D CBCA(CO)NH	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
7	3D HBHA(CO)NH	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
8	3D HNCO	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
9	3D HCCH-TOCSY	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
10	3D-CCH-TOCSY	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
11	3D 1H-15N NOESY	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
12	3D 1H-13C aliph NOESY	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
13	3D 1H-13C arom NOESY	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
14	3D HCCH-COSY	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
15	2D 1H-15N HSQC	1.26 mM [U-10% 13C; U-99% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
16	2D 1H-15N HSQC	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293
17	2D 1H-13C HSQC	1.06 mM [U-100% 13C; U-100% 15N] GmR137, THiS protein	90% H2O/10% D2O	5 mM CaCl2, 100mM NaCl	6.5	ambient	293

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	800
2	Varian	INOVA	600
3	Varian	INOVA	500

NMR Refinement
Method	Details	Software
simulated annealing	The structure was obtained using triple resonance NMR spectroscopy. GFT-NMR experiments were used for backbone resonance assignments and conventional 3D TOCSY and COSY experiments were used to obtain sidechain resonance assignments. Automated NOESY assignments were made using AUTOSTRUCTURE and CYANA-2.1. Dihedral angle constraints were obtained from TALOS. The structure calculation was done excluding 5 HIS from 8-residue C-terminal tag (LEHHHHHH). Completeness of assignments excluding 5-HIS: Backbone - 100%, Sidechain (aliphatic) - 99% Sidechain (aromatic) - 96%. The assignments were validated using AVS software. Final structure quality factros (excluding 5 HIS) determined using PSVS-v1.3: Ordered residues are defiend as: 1-13, 18-29, 32-63. (a) RMSD (ordered residues) all backbone atoms: 0.7A and heavy atoms: 1.2A. (b) Ramachandran statistics for ordered residues: Most favored region: 82.8%, additionally allowed regions: 17.0% generously allowed region: 0.1%, disallowed regions: 0.1%. (c) Procheck scores for ordered residues (RAW/Z-): Phi/psi -0.58/-1.97, all -0.48/-2.84, (d) MolProbity clashscores (RAW/Z-) 17.03/-1.40, (e) RPF scores for the goodness of the fit to NOESY data: Recall - 0.99, Precision - 0.942, F-measure - 0.966 and final dp score - 0.88. (f) Number of close contacts for 20 models: 6, RMS deviation for bond angles - 0.6deg, RMS deviation for bond lengths - 0.009A.	CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	140
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CNS	2.0.6	Brunger, Adams, Clore, Gros, Nilges and Read
2	structure solution	AutoStructure	2.2.1	Huang, Tejero, Powers and Montelione
3	structure solution	CYANA	2.1	Guntert, Mumenthaler and Wuthrich
4	chemical shift assignment	AutoAssign	2.4.0	Zimmerman, Moseley, Kulikowski and Montelione