2KGK

Solution structure of Bacillus anthracis dihydrofolate reductase

SOLUTION NMR

---

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1 mM [U-100% 13C; U-100% 15N] DHFR, 2 mM UCP120B, 2 mM NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE, 0.5 mM EDTA, 10 mM DTT, 50 mM potassium chloride, 20 mM TES	95% H2O/5% D2O		7.0	ambient	298
2	3D HNCACB	1 mM [U-100% 13C; U-100% 15N] DHFR, 2 mM UCP120B, 2 mM NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE, 0.5 mM EDTA, 10 mM DTT, 50 mM potassium chloride, 20 mM TES	95% H2O/5% D2O		7.0	ambient	298
3	3D HCCH-TOCSY	1 mM [U-100% 13C; U-100% 15N] DHFR, 2 mM UCP120B, 2 mM NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE, 0.5 mM EDTA, 10 mM DTT, 50 mM potassium chloride, 20 mM TES	95% H2O/5% D2O		7.0	ambient	298
4	3D HNCA	1 mM [U-100% 13C; U-100% 15N] DHFR, 2 mM UCP120B, 2 mM NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE, 0.5 mM EDTA, 10 mM DTT, 50 mM potassium chloride, 20 mM TES	95% H2O/5% D2O		7.0	ambient	298
5	3D HNCO	1 mM [U-100% 13C; U-100% 15N] DHFR, 2 mM UCP120B, 2 mM NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE, 0.5 mM EDTA, 10 mM DTT, 50 mM potassium chloride, 20 mM TES	95% H2O/5% D2O		7.0	ambient	298
6	3D HBHA(CO)NH	1 mM [U-100% 13C; U-100% 15N] DHFR, 2 mM UCP120B, 2 mM NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE, 0.5 mM EDTA, 10 mM DTT, 50 mM potassium chloride, 20 mM TES	95% H2O/5% D2O		7.0	ambient	298
7	3D C(CO)NH	1 mM [U-100% 13C; U-100% 15N] DHFR, 2 mM UCP120B, 2 mM NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE, 0.5 mM EDTA, 10 mM DTT, 50 mM potassium chloride, 20 mM TES	95% H2O/5% D2O		7.0	ambient	298
8	3D 1H-15N NOESY	1 mM [U-100% 13C; U-100% 15N] DHFR, 2 mM UCP120B, 2 mM NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE, 0.5 mM EDTA, 10 mM DTT, 50 mM potassium chloride, 20 mM TES	95% H2O/5% D2O		7.0	ambient	298
9	3D 1H-13C NOESY	1 mM [U-100% 13C; U-100% 15N] DHFR, 2 mM UCP120B, 2 mM NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE, 0.5 mM EDTA, 10 mM DTT, 50 mM potassium chloride, 20 mM TES	95% H2O/5% D2O		7.0	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500
2	Varian	INOVA	600

NMR Refinement
Method	Details	Software
DGSA-distance geometry simulated annealing		X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	15
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR NIH	2.20	Schwieters, C. et al.
2	structure solution	CYANA	2.1	Guntert, P. et al.