2K0D

NMR structure of a mutant colicin e7 immunity protein im7 with an extended helix III

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D HNCACB	1 mM [U-99% 13C; U-99% 15N] potassium phosphate	90% H2O/10% D2O	50		ambient atm	298
2	3D CBCA(CO)NH	1 mM [U-99% 13C; U-99% 15N] potassium phosphate	90% H2O/10% D2O	50		ambient atm	298
3	3D HNCO	1 mM [U-99% 13C; U-99% 15N] potassium phosphate	90% H2O/10% D2O	50		ambient atm	298
4	3D 1H-15N NOESY	1 mM [U-99% 15N] potassium phosphate	90% H2O/10% D2O	50		ambient atm	298
5	3D 1H-15N TOCSY	1 mM [U-99% 15N] potassium phosphate	90% H2O/10% D2O	50		ambient atm	298
6	3D 1H-13C NOESY	1 mM [U-99% 13C; U-99% 15N] potassium phosphate	100% D2O	50		ambient atm	298
7	3D HCCH-TOCSY	1 mM [U-99% 13C; U-99% 15N] potassium phosphate	90% H2O/10% D2O	50		ambient atm	298
8	3D H(CCO)NH	1 mM [U-99% 13C; U-99% 15N] potassium phosphate	90% H2O/10% D2O	50		ambient atm	298
9	3D C(CO)NH	1 mM [U-99% 13C; U-99% 15N] potassium phosphate	90% H2O/10% D2O	50		ambient atm	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	900
2	Varian	INOVA	600
3	Varian	INOVA	500

NMR Refinement
Method	Details	Software
torsion angle dynamics, simulated annealing		NMRView

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	100
Conformers Submitted Total Number	30
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	NMRView	5.1.1	Johnson, One Moon Scientific
2	structure solution	CYANA	2.1	Guntert, Mumenthaler and Wuthrich
3	structure solution	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
4	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
5	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
6	refinement	ProcheckNMR		Laskowski and MacArthur
7	refinement	WHAT IF		Vriend
8	geometry optimization	TALOS		Cornilescu, Delaglio and Bax
9	peak picking	AtnosCandid	1.1	Herrmann, Guntert and Wuthrich
10	chemical shift assignment	AtnosCandid	1.1	Herrmann, Guntert and Wuthrich