2MHF

Solution structure of the cyclic-nucleotide binding homology domain of a KCNH channel

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	20 mM sodium phosphate-1, 150 mM sodium chloride-2, 1 mM DTT-3, 0.2-0.8 mM [U-100% 15N] protein-4	90% H2O/10% D2O	150	6.5	ambient	298
2	3D HNCACB	0.2-0.8 mM [U-100% 13C; U-100% 15N] protein-5, 20 mM sodium phosphate-6, 150 mM sodium chloride-7, 1 mM DTT-8	90% H2O/10% D2O	150	6.5	ambient	298
3	3D CBCA(CO)NH	0.2-0.8 mM [U-100% 13C; U-100% 15N] protein-5, 20 mM sodium phosphate-6, 150 mM sodium chloride-7, 1 mM DTT-8	90% H2O/10% D2O	150	6.5	ambient	298
4	3D C(CO)NH	0.2-0.8 mM [U-100% 13C; U-100% 15N] protein-5, 20 mM sodium phosphate-6, 150 mM sodium chloride-7, 1 mM DTT-8	90% H2O/10% D2O	150	6.5	ambient	298
5	3D HNCA	0.2-0.8 mM [U-100% 13C; U-100% 15N] protein-5, 20 mM sodium phosphate-6, 150 mM sodium chloride-7, 1 mM DTT-8	90% H2O/10% D2O	150	6.5	ambient	298
6	3D H(CCO)NH	0.2-0.8 mM [U-100% 13C; U-100% 15N] protein-5, 20 mM sodium phosphate-6, 150 mM sodium chloride-7, 1 mM DTT-8	90% H2O/10% D2O	150	6.5	ambient	298
7	3D HNCO	0.2-0.8 mM [U-100% 13C; U-100% 15N] protein-5, 20 mM sodium phosphate-6, 150 mM sodium chloride-7, 1 mM DTT-8	90% H2O/10% D2O	150	6.5	ambient	298
8	3D 1H-13C NOESY aliphatic	0.2-0.8 mM [U-100% 13C; U-100% 15N] protein-9, 20 mM sodium phosphate-10, 150 mM sodium chloride-11, 1 mM DTT-12	100% D2O	150	6.5	ambient	298
9	3D 1H-15N NOESY	0.2-0.8 mM [U-100% 13C; U-100% 15N] protein-5, 20 mM sodium phosphate-6, 150 mM sodium chloride-7, 1 mM DTT-8	90% H2O/10% D2O	150	6.5	ambient	298
10	3D HCCH-COSY	0.2-0.8 mM [U-100% 13C; U-100% 15N] protein-5, 20 mM sodium phosphate-6, 150 mM sodium chloride-7, 1 mM DTT-8	90% H2O/10% D2O	150	6.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	700

NMR Refinement
Method	Details	Software
simulated annealing	started with an extended structure. final structures are energy minimized.	CYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	60
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA		Guntert, Mumenthaler and Wuthrich
2	structure solution	X-PLOR-NIH		Schwieters, Kuszewski, Tjandra and Clore
3	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
4	peak picking	NMRView		Johnson, One Moon Scientific
5	refinement	X-PLOR-NIH