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