2KQK

Solution structure of apo-IscU(D39A)

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	0.8 mM [U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
2	2D 1H-13C HSQC	0.8 mM [U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
3	3D CBCA(CO)NH	2.0 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
4	3D HNCACB	2.0 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
5	3D HNCO	2.0 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
6	3D HNCA	2.0 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
7	3D HBHA(CO)NH	2.0 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
8	3D H(CCO)NH	2.0 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
9	3D HCCH-TOCSY	2.0 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
10	3D C(CO)NH	2.0 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
11	3D 1H-15N NOESY	0.8 mM [U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
12	3D 1H-13C NOESY	0.8 mM [U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
13	3D HN(CO)CA	2.0 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 150 mM sodium chloride, 0.5 mM EDTA, 0.02 % sodium azide	93% H2O/7% D2O	0.15	8.0	AMBIENT	298
14	2D 1H-15N IPAP-HSQC	1.3 mM [U-13C; U-15N] IscU, 20 mM TRIS, 0.7 mM DSS, 5 mM DTT, 0.5 mM EDTA, 150 mM sodium chloride, 0.02 % sodium azide, 3.9 mg Pf1 phage	93% H2O/7% D2O	0.15	8.0	AMBIENT	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Varian	INOVA	800
3	Bruker	DMX	750

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

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
2	data analysis	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	structure solution	CYANA_3.0_intel	3.0_intel	Guntert, Mumenthaler and Wuthrich
4	refinement	CYANA_3.0_intel	3.0_intel	Guntert, Mumenthaler and Wuthrich
5	peak picking	Sparky		Goddard
6	chemical shift assignment	Sparky		Goddard
7	data analysis	Sparky		Goddard
8	collection	VnmrJ		Varian
9	data analysis	Atnos/Candid		Herrmann, T.
10	collection	XwinNMR		Bruker Biospin