2MQ9

Solution structure of E55Q mutant of eRF1 N-domain

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 MES-1, 100 mM potassium chloride-2, 2 mM DTT-3	95% H2O/5% D2O	100	6.5	ambient	298
2	3D HNCA	20 mM MES-1, 100 mM potassium chloride-2, 2 mM DTT-3	95% H2O/5% D2O	100	6.5	ambient	298
3	3D 1H-15N NOESY	20 mM MES-1, 100 mM potassium chloride-2, 2 mM DTT-3	95% H2O/5% D2O	100	6.5	ambient	298
4	3D 1H-13C NOESY	20 mM MES-1, 100 mM potassium chloride-2, 2 mM DTT-3	95% H2O/5% D2O	100	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
torsion angle dynamics, simulated annealing		CYANA

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA		Guntert, Mumenthaler, Keller and Wuthrich, Bruker Biospin
2	chemical shift assignment	CYANA		Guntert, Mumenthaler, Keller and Wuthrich, Bruker Biospin
3	collection	CYANA		Guntert, Mumenthaler, Keller and Wuthrich, Bruker Biospin
4	refinement	CYANA
5	refinement	CNS