2MNG

Apo Structure of human HCN4 CNBD solved by NMR

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	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 2 mM EDTA, 2 mM EGTA, 0.02% sodium azide, 0.5 mM [U-13C; U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4	95% H2O/5% D2O		6.5	ambient	300
2	3D CBCA(CO)NH	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 2 mM EDTA, 2 mM EGTA, 0.02% sodium azide, 0.5 mM [U-13C; U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4	95% H2O/5% D2O		6.5	ambient	300
3	3D H(CCO)NH	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 2 mM EDTA, 2 mM EGTA, 0.02% sodium azide, 0.5 mM [U-13C; U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4	95% H2O/5% D2O		6.5	ambient	300
4	3D HNCO	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 2 mM EDTA, 2 mM EGTA, 0.02% sodium azide, 0.5 mM [U-13C; U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4	95% H2O/5% D2O		6.5	ambient	300
5	3D HNCA	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 2 mM EDTA, 2 mM EGTA, 0.02% sodium azide, 0.5 mM [U-13C; U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4	95% H2O/5% D2O		6.5	ambient	300
6	3D HNCACB	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 2 mM EDTA, 2 mM EGTA, 0.02% sodium azide, 0.5 mM [U-13C; U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4	95% H2O/5% D2O		6.5	ambient	300
7	3D HCCH-TOCSY	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 2 mM EDTA, 2 mM EGTA, 0.02% sodium azide, 0.5 mM [U-13C; U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4	95% H2O/5% D2O		6.5	ambient	300
8	3D C(CO)NH	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 2 mM EDTA, 2 mM EGTA, 0.02% sodium azide, 0.5 mM [U-13C; U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4	95% H2O/5% D2O		6.5	ambient	300
9	2D 1H-15N HSQC	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 1 mM EDTA, 0.02% sodium azide, 0.2 mM [U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4, 6 mg/mL Pf1 phage	95% H2O/5% D2O		6.5	ambient	300
10	2D 1H-15N HSQC	1 mM DTT, 20 mM MES, 100 mM potassium chloride, 1 mM EDTA, 0.02% sodium azide, 0.2 mM [U-15N] Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4	95% H2O/5% D2O		6.5	ambient	300

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	700
2	Bruker	AVANCE	850

NMR Refinement
Method	Details	Software
	RASREC-Rosetta, Lange & Baker, 2012, Proteins	Sparky

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50000
Conformers Submitted Total Number	10
Representative Model	1 (closest to the average)

Additional NMR Experimental Information
Details	The structure was determined using chemical shift and residual dipolar coupling data.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	Sparky		Goddard
2	refinement	Rosetta		Lange and Baker