1R2P

Solution structure of domain 5 from the ai5(gamma) group II intron

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	0.5 - 0.7 mM D5 RNA; 0 - 200mM KCl, 0 - 20 mM MgCl2, 0.01 mM EDTA, 90% H2O, 10% D2O	90% H2O/10% D2O	100mM KCl	6.5		278
2	2D NOESY	0.5 - 0.7 mM D5 RNA; 0 - 200mM KCl, 0 - 20 mM MgCl2, 0.01 mM EDTA	99.999% D2O	100mM KCl	6.5		308
3	2D NOESY	0.5 - 0.7 mM D5 RNA; 0 - 200mM KCl, 0 - 20 mM MgCl2, 0.01 mM EDTA	99.999% D2O	100mM KCl	6.5		291
4	3D_13C-separated_NOESY	0.5 - 0.7 mM D5 RNA, 13C-15N LABELED; 100mM KCl, 0.01 mM EDTA	99.999% D2O	100mM KCl	6.5		298
5	2D 1H-13C HSQC	0.5 - 0.7 mM D5 RNA, 13C-15N LABELED; 100mM KCl, 0.01 mM EDTA	99.999% D2O	100mM KCl	6.5		298
6	2D 1H-1H TOCSY	0.5 - 0.7 mM D5 RNA; 0 - 200mM KCl, 0 - 20 mM MgCl2, 0.01 mM EDTA	99.999% D2O	100mM KCl	6.5		298
7	3D 1H-13C-1H HCCH TOCSY	0.5 - 0.7 mM D5 RNA, 13C-15N LABELED; 100mM KCl, 0.01 mM EDTA	99.999% D2O	100mM KCl	6.5		298
8	3D 1H-13C-1H HCCH COSY	0.5 - 0.7 mM D5 RNA, 13C-15N LABELED; 100mM KCl, 0.01 mM EDTA	99.999% D2O	100mM KCl	6.5		298
9	2D 2JHN HNN-COSY	0.5 - 0.7 mM D5 RNA, 13C-15N LABELED; 100mM KCl, 0.01 mM EDTA, 90% H2O, 10% D2O	90% H2O/10% D2O	100mM KCl	6.5		298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	DMX	500
3	Bruker	DMX	750

NMR Refinement
Method	Details	Software
TORSION ANGLE MOLECULAR DYNAMICS CARTESIAN SPACE SIMULATED ANNEALING AND MOLECULAR DYNAMICS RESIDUAL DIPOLAR COUPLINGS	STRUCTURES BASED ON 678 NOE-DERIVED DISTANCE RESTRAINTS, 261 DIHEDRAL RESTRAINTS, 72 HYDROGEN BOND RESTRAINTS, AND 24 RESIDUAL DIPOLAR COUPLING RESTRAINTS	CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	RESIDUAL DIPOLAR COUPLINGS WERE MEASURED USING 1H-13C HSQC COUPLED IN EITHER THE PROTON OR THE CARBON DIMENSION

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS	1.1	Brunger et. al.
2	data analysis	DYANA		Guntert, Mumenthaler, Wuthrich
3	data analysis	Sparky	3	Goddard and Kneller
4	processing	XwinNMR	2.6	Bruker
5	refinement	CNS	1.1	Brunger et. al.