2NA2

DROSHA QUAD MUTANT DOUBLE-STRANDED RNA BINDING COMPETENT

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	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298
2	3D HNCO	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298
3	3D HN(CA)CO	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298
4	3D CBCA(CO)NH	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298
5	3D HNCACB	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298
6	3D H(CCO)NH	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298
7	3D H(CCO)NH	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298
8	2D 1H-1H NOESY	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298
9	3D HCCH-TOCSY	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298
10	3D HNHA	850 mM [U-100% 13C; U-100% 15N] protein, 100 mM cacodylate pH 7.29, 100 mM potassium chloride, 5 mM beta-mercaptoethanol, 10 % D2O	90% H2O/10% D2O	0.1	7.29	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	500

NMR Refinement
Method	Details	Software
DGSA-distance geometry simulated annealing		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	all calculated structures submitted
Conformers Calculated Total Number	1000
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin	3.5	Bruker Biospin
2	processing	TopSpin	3.5	Bruker Biospin
3	chemical shift assignment	Sparky		Goddard
4	chemical shift calculation	TALOS		Cornilescu, Delaglio and Bax
5	structure solution	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
6	refinement	X-PLOR NIH