2LDZ

SOLUTION STRUCTURE OF THE LEAD-DEPENDENT RIBOZYME, NMR, MINIMIZED AVERAGE STRUCTURE

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	NOESY	H2O/D2O		0.1 M	5.5	1 atm	298
2	CPMG-NOESY	H2O/D2O		0.1 M	5.5	1 atm	298
3	BD-NOESY	H2O/D2O		0.1 M	5.5	1 atm	298
4	CBD-NOESY	H2O/D2O		0.1 M	5.5	1 atm	298
5	NOESY-HSQC	H2O/D2O		0.1 M	5.5	1 atm	298
6	CBD-NOESY-HSQC	H2O/D2O		0.1 M	5.5	1 atm	298
7	HMQC-NOESY-HSQC	H2O/D2O		0.1 M	5.5	1 atm	298
8	HCCH-E.COSY	H2O/D2O		0.1 M	5.5	1 atm	298
9	DIRECTED HCC-TOCSY-CCH-E.COSY	H2O/D2O		0.1 M	5.5	1 atm	298
10	SPIN-ECHO DIFFERENCE CT-HCCH-COSY	H2O/D2O		0.1 M	5.5	1 atm	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	UNITYPLUS	500
2	Bruker	UNITYINOVA	600
3	Bruker	DMX	750

NMR Refinement
Method	Details	Software
SIMULATED ANNEALING FROM RANDOM TORSION ANGLES	A COMPLETE SET OF REFINEMENT MACROS, ALONG WITH ASSOCIATED FILES, IS AVAILABLE UPON REQUEST TO THE AUTHORS.	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	NO NOE VIOLATIONS GREATER THAN 0.3 A, NO DIHEDRAL VIOLATIONS GREATER THAN 3 DEGREES, GOOD STEREOCHEMICAL QUALITY, TOTAL ENERGY LESS THAN -120 KCAL/MOL, NOE PSEUDOENERGY LESS THAN 4 KCAL/ MOL
Conformers Calculated Total Number	25
Conformers Submitted Total Number	1

Additional NMR Experimental Information
Details	THE STRUCTURE WAS DETERMINED FROM DISTANCE AND TORSION ANGLE RESTRAINTS DERIVED USING UNLABELED, 15N-LABELED, AND 13C, 15N-LABELED SAMPLES OF THE LEADZYME PREPARED BY IN VITRO TRANSCRIPTION.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	3.1	BRUNGER
2	structure solution	X-PLOR	3.1