1O0P
Solution Structure of the third RNA Recognition Motif (RRM) of U2AF65 in complex with an N-terminal SF1 peptide
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 3D_13C-separated_NOESY | 1mM 15N,13C U2AF65-RRM3 + 1mM unlabeled SF1_10-25, 30mM phosphate buffer, 20mM NaCL, 3mM DTT | 100% D2O | 50mM salt | 6.4 | ambient | 295 | |
2 | 3D_15N-separated_NOESY | 1mM 15N,13C U2AF65-RRM3 + 1mM unlabeled SF1_10-25, 30mM phosphate buffer, 20mM NaCL, 3mM DTT | 90% H2O/10% D2O | 50mM salt | 6.4 | ambient | 295 | |
3 | 3D_13C/15N-edited/filtered_NOESY | 1mM 15N,13C U2AF65-RRM3 + 1mM unlabeled SF1_10-25, 30mM phosphate buffer, 20mM NaCL, 3mM DTT | 100% D2O | 50mM salt | 6.4 | ambient | 295 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DRX | 600 |
2 | Bruker | DRX | 500 |
3 | Bruker | DRX | 800 |
NMR Refinement | ||
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Method | Details | Software |
Restrained molecular dynamics using CNS and ARIA for ambiguous distance restraints | THE EXPERIMENTALLY DETERMINED DISTANCE (3232 NOEs, INCLUDING 258 FOR THE SF1 PEPTIDE, 64 INTERMOLECULAR, AND 2*35 FOR HYDROGEN BONDS) AND DIHEDRAL ANGLE RESTRAINTS (99) WERE APPLIED IN A MIXED TORSION AND CARTESIAN ANGLE DYNAMICS/SIMULATED ANNEALING PROTOCOL. STRUCTURAL QUALITY WAS ASSESED WITH PROCHECK. | NMRPipe |
NMR Ensemble Information | |
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Conformer Selection Criteria | structures with the least restraint violations,structures with the lowest energy |
Conformers Calculated Total Number | 100 |
Conformers Submitted Total Number | 10 |
Representative Model | 1 (lowest energy) |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | processing | NMRPipe | 2.1 | DELAGIO |
2 | data analysis | XEASY | BARTELS | |
3 | structure solution | ARIA | 1.2 | NILGES |
4 | structure solution | CNS | 1.1 | BRUNGER |
5 | refinement | CNS | 1.1 | BRUNGER |