2L8L

Structure of an engineered splicing intein mutant based on Mycobacterium tuberculosis RecA

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D HCCH-COSY	50 mM sodium phosphate, 100 mM sodium chloride, 1 mM sodium azide, 0.15-0.2 mM [U-98% 13C; U-98% 15N] protein	90% H2O/10% D2O	150	7	ambient	298
2	3D HNCACB	50 mM sodium phosphate, 100 mM sodium chloride, 1 mM sodium azide, 0.15-0.2 mM [U-98% 13C; U-98% 15N] protein	90% H2O/10% D2O	150	7	ambient	298
3	3D 1H-13C NOESY aliphatic	50 mM sodium phosphate, 100 mM sodium chloride, 1 mM sodium azide, 0.15-0.2 mM [U-98% 13C; U-98% 15N] protein	90% H2O/10% D2O	150	7	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	ARX	800
2	Bruker	ARX	600

NMR Refinement
Method	Details	Software
simulated annealing		Sparky

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	Sparky		Goddard
2	structure solution	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
3	refinement	X-PLOR NIH