2EZW
Solution structure of the docking and dimerization domain of the type I alpha regulatory subunit of protein kinase A (RIalpha D/D)
SOLUTION NMR
NMR Experiment | ||||||||
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Experiment | Type | Sample Contents | Solvent | Ionic Strength | pH | Pressure | Temperature (K) | Spectrometer |
1 | 2D NOESY | R1a(12-61) at 1.2-1.6 mM dimer, 50mM sodium acetate, 150mM sodium chloride, pH 4.0, 90% H2O, 10% D2O | 90% H2O/10% D2O | 50mM sodium acetate, 150mM sodium chloride | 4. | 1 atm | 310 | |
2 | 2D 1H-15N HSQC, amide proton exchange | 15N-enriched R1a(12-61) | 5% H2O, 95% D2O | 50mM sodium acetate, 150mM sodium chloride | 4. | 1 atm | 310 | |
3 | 3D 1H-15N HSQC NOESY | 15N-enriched R1a(12-61), 90% H2O, 10% D2O | 90% H2O/10% D2O | 50mM sodium acetate, 150mM sodium chloride | 4. | 1 atm | 310 | |
4 | 3D HNHA | 15N-enriched R1a(12-61), 90% H2O, 10% D2O | 90% H2O/10% D2O | 50mM sodium acetate, 150mM sodium chloride | 4. | 1 atm | 310 | |
5 | 3D 13C-edited HMQC-NOESY | 13C/15N-enriched R1a(12-61) | 5% H2O, 95% D2O | 50mM sodium acetate, 150mM sodium chloride | 4. | 1 atm | 310 | |
6 | 3D 13C-edited(w2) 12C-filtered(w1) 13C-filtered(w3) NOESY | asymmetrically enriched 13C/15N-12C/14N R1a(12-61) | 5% H2O,95% D2O | 50mM sodium acetate, 150mM sodium chloride | 4. | 1 atm | 310 |
NMR Spectrometer Information | |||
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Spectrometer | Manufacturer | Model | Field Strength |
1 | Bruker | DMX | 500 |
2 | Bruker | DRX | 600 |
NMR Refinement | ||
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Method | Details | Software |
simulated annealing | The structures are based on a total of 435 NOE-derived distance, 139 backbone dihedral and 13 hydrogen bond restraints per monomer | FELIX |
NMR Ensemble Information | |
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Conformer Selection Criteria | |
Conformers Calculated Total Number | |
Conformers Submitted Total Number | 18 |
Representative Model | 1 (n/a) |
Additional NMR Experimental Information | |
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Details | The structure was determined using triple-resonance NMR spectroscopy |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | processing | FELIX | 95.0 | Molecular Simulations Inc. |
2 | structure solution | X-PLOR | 3.851 | Brunger, A.T. |
3 | refinement | X-PLOR | 3.851 | Brunger, A.T. |