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 Experimental Data


Experimental Details
Sample Conditions
Spectrometer Information
Manufacturer Model Field Strength
Bruker DRX 600.0
Bruker DMX 500.0
NMR Refinement
Method 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.
Details 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.
NMR Ensemble Information
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 Choice Rationale
1 lowest energy
Additional NMR Experimental Information
1 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
# Classification Software Name Author
1 refinement X-PLOR 3.851 Brunger, A.T.
2 structure solution X-PLOR 3.851 Brunger, A.T.