1L6E
Solution structure of the docking and dimerization domain of protein kinase A II-alpha (RIIalpha D/D). Alternatively called the N-terminal dimerization domain of the regulatory subunit of protein kinase A.
SOLUTION NMR
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 |
Hybrid distance geometry-dynamical simulated annealing and refinement protocol for monomer structure determination, with 457 NOE-derived distance restraints (185 intra-residue, i-j=0; 136 sequential, |i-j|=1; 95 medium range, 1<|i-j|<5; 41 long range, |i-j|>4), 19 distance restraints representing hydrogen bonds (entered as 2 distances each), 25 phi- and 5 chi1-torsion angle restraints. Molecular dynamical simulated annealing protocol for dimer structure determination, using 505 NOE-derived distance restraints (185 intra-residue, i-j=0; 136 sequential, |i-j|=1; 95 medium range, 1<|i-j|<5; 25 long range, |i-j|>4; 38 inter-molecular; 26 ambiguous), 19 distance restraints representing hydrogen bonds (entered as 2 distances each), 25 phi- and 5 chi1-torsion angle restraints. | Filtered NOESY spectrum on a 50% unlabeled-50% 13C-15N-labeled sample was used to obtain inter-molecular NOE contacts of the homodimer. Other NOEs were classified as intra-molecular and ambiguous. | X-PLOR |
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 | 49 |
Conformers Submitted Total Number | 24 |
Representative Model | 1 (lowest energy) |
Additional NMR Experimental Information | |
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Details | This structure was determined using standard homonuclear, heteronuclear, and triple resonance spectroscopy, and 3D 13C-edited(w2)-12C-filtered(w1)/13C-filtered(w3) NOESY. |
Computation: NMR Software | ||||
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# | Classification | Version | Software Name | Author |
1 | structure solution | X-PLOR | 3.851 | Brunger, A.T. |
2 | refinement | X-PLOR | 3.851 | Brunger, A.T. |