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.
Solution structure of the closed conformation of human U2AF65 tandem RRM1 and RRM2 domains
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
1H
90% WATER/10% D2O
70 mM
6.5
1.0 atm
295.0
2
15N HSQC (PRE)
90% WATER/10% D2O
70 mM
6.5
1.0 atm
295.0
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
AVANCE
600
NMR Refinement
Method
Details
Software
MODIFIED ARIA
FINAL WATER REFINEMENT. THE STRUCTURE WAS DETERMINED USING A MULTI-STEP PROTOCOL. FIRST WITH REFINEMENT OF INDIVIDUAL STRUCTURED DOMAINS FOR RRM1 AND RRM2 OF U2AF65. THE INITIAL COORDINATES OF THE ISOLATED DOMAINS WERE BASED ON PDB ID 2G4B BY SICKMIER ET AL. 2006. MOL. CELL 23, 49- 59. SECOND STEP IS ADDITION AND RANDOMIZATION OF FLEXIBLE AND LINKER RESIDUES. THE THIRD STEP IS MODEL CALCULATION USING RDC ORIENTATION, PRE-BASED DISTANCE, TALOS DIHEDRAL AND HYDROGEN BOND RESTRAINTS WITH THE RRM1 AND RRM2 DOMAINS RESTRAINED TO THEIR INITIAL STARTING STRUCTURES. STRUCTURE CALCULATION INCLUDED DISTANCE RESTRAINTS BASED ON PARAMAGNETIC RELAXATION ENHANCEMENT DATA FROM SEVEN INDEPENDENT CYSTEINE MUTANTS (N155C, A164C, A171C, T209C, D273C, A287C AND A318C) COVALENTLY MODIFIED BY 3-(2- IODOACETAMIDO)-2,2,5,5, TETRAMETHYL-1- PYRROLIDINYLOXY RADICAL (IODOACETAMIDO-PROXYL).