1EI2

STRUCTURAL BASIS FOR RECOGNITION OF THE RNA MAJOR GROOVE IN THE TAU EXON 10 SPLICING REGULATORY ELEMENT BY AMINOGLYCOSIDE ANTIBIOTICS

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled	90% H2O/10% D2O	10mM potassium phosphate	6	1 atm	300
2	3D_13C-separated_NOESY	1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled	90% H2O/10% D2O	10mM potassium phosphate	6	1 atm	300
3	2D TOCSY	1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled	90% H2O/10% D2O	10mM potassium phosphate	6	1 atm	300
4	2D 13C HSQC	1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled	90% H2O/10% D2O	10mM potassium phosphate	6	1 atm	300
5	2D 15N HSQC	1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled	90% H2O/10% D2O	10mM potassium phosphate	6	1 atm	300
6	HCCP, HETEROTOCSY	1mM tau exon 10 SRE RNA U-13C,15N; 10mM phosphate buffer, pH 6; 1mM neomycin unlabelled	90% H2O/10% D2O	10mM potassium phosphate	6	1 atm	300

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600

NMR Refinement
Method	Details	Software
restrained molecular dynamics	The structure was calculated starting from random coordinates. No manual or automatic docking step was used at any stage of the calculation.	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations, structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	17

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR	3.8	Brunger
2	data analysis	FELIX	97.0	msi
3	collection	XWINNMR	2.0	bruker
4	refinement	X-PLOR	3.8	Brunger