Find PDB structures and Computed Structure Models (CSM) by combining queries from tools in this suite: Attribute Search, Sequence Similarity, Sequence Motif, 3D Similarity, and 3D Motif with 'AND' logic.
J4/5 Loop from the Candida albicans and Candida dubliniensis Group I Introns
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D NOESY
~~2 mM RNA, 80 mM NaCl, 3 mM KH2PO4, 7 mM K2HPO4, 0.5 mM Na2EDTA, 3 mM cobalt hexamine, pH=6.1, 90% H2O, 10% D2O
90% H2O/10% D2O
80 mM NaCl, 3 mM cobalt hexamine
6.1
ambient
298
2
2D NOESY
~~2 mM RNA, 80 mM NaCl, 3 mM KH2PO4, 7 mM K2HPO4, 0.5 mM Na2EDTA, 3 mM cobalt hexamine, pH=6.1
100% D2O
80 mM NaCl, 3 mM cobalt hexamine
6.1
ambient
298
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
INOVA
500
NMR Refinement
Method
Details
Software
molecular dynamics
The structures are based on a total of 217 NMR-derived interproton distance restraints (108 intranucleotide and 109 internucleotide). Hydrogn bond restraints were used for the six WC pairs and for the G8-U14 wobble pair. On the basis of NMR data that is consistent with the formation of tandem sheared AA pairs, two artificial hydrogen bonding restraints were used between each sheared AA pair.