1JWC
NMR SOLUTION STRUCTURE OF THE RNA HAIRPIN BINDING SITE FOR THE HISTONE STEM-LOOP BINDING PROTEIN
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | noesy | 2.3 MM U-13C; 20 MM KPI, 20 MM KCL, 0.02 MM EDTA | 100% D2O | 100 mM | 6.8 | ambient | 301 | |
2 | 3D_13C-separated_NOESY | 2.3 MM U-13C; 20 MM KPI, 20 MM KCL, 0.02 MM EDTA | 100% D2O | 100 mM | 6.8 | ambient | 301 | |
3 | 3D_15N-separated_NOESY | 2.5 MM 15N-labeled; 20 MM KPI, 20 MM KCL, 0.02 MM EDTA | 100% D2O | 100 mM | 6.8 | ambient | 278 | |
4 | DQF-COSY | 2.5 MM 15N-labeled; 20 MM KPI, 20 MM KCL, 0.02 MM EDTA | 100% D2O | 100 mM | 6.8 | ambient | 301 | |
5 | HetCor | 2.5 MM 15N-labeled; 20 MM KPI, 20 MM KCL, 0.02 MM EDTA | 100% D2O | 100 mM | 6.8 | ambient | 301 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | AMX | 500 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing | CALCULATIONS WERE PERFORMED USING 232 CONFORMATIONALLY RESTRICTIVE NOE DERIVED DISTANCE CONSTRAINTS AND 55 BACKBONE AND 15 RIBOSE TORSION ANGLE CONSTRAINTS. BASE PAIR CONSTRAINTS WERE INTRODUCED FOR SIX BASE PAIRS USING HEAVY ATOM-HEAVY ATOM CONSTRAINTS. COORDINATES ARE FOR THE HAIRPIN DOMAIN ONLY. 5' FLANKING (GGCCAAA) AND 3' FLANKING (ACCCA) COORDINATES ARE NOT INCLUDED WITH THIS DEPOSITION. FEW CONSTRAINTS WERE OBTAINED FOR THESE VERY DYNAMIC REGIONS AND ALTHOUGH THEY WERE INCLUDED AS PART OF THE STRUCTURE CALCULATION, THEIR CONFORMATIONS APPEAR TO BE RANDOMLY DISTRIBUTED. | X-PLOR |
NMR Ensemble Information | |
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Conformer Selection Criteria | |
Conformers Calculated Total Number | |
Conformers Submitted Total Number | 1 |
Representative Model | 1 (minimized average structure) |
Additional NMR Experimental Information | |
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Details | THIS STRUCTURE WAS DETERMINED USING A VARIETY OF 2D AND 3D HOMO- AND HETERO-NUCLEAR NMR METHODS |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | refinement | X-PLOR | 3.851 | Brunger, A. |
2 | processing | Felix | 980 | Biosym |