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The structures are based on a total of 514 restraints, 285 are NOE-derived distance constraints, 175 dihedral angle restraints, 54 distance restraints from hydrogen bonds. The NOE-derived distance constraints were derived from 2D-NOESY spectra (mix. times 50, 75, 100 and 150 ms), using the Iterative Relaxation Matrix Analysis procedure. The final structures were derived by averaging coordinates of 100 structures obtained from IRMA cycles and subsequent 350 ps trajectory of restrained molecular dynamics and energy minimisation. R factor value: 0.41 +/- 0.01; R(1/6) value: 0.0045 +/- 0.0001; RMSD value: 1.22 +/- 0.51; The R and R(1/6) - factors are defined: R = SUM{|I(OBS) - I(CALC)|} / SUM{|I(OBS)|} R(1/6)=SQR(SUM{|I(OBS)^(1/6) - I(CALC)^(1/6)|}^2) / SUM{I(OBS)^(1/6)} Where I(OBS) and I(CALC) are the observed and the calculated NOE intensites.
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NMR Ensemble Information
Conformer Selection Criteria
structures with the lowest energy
Conformers Calculated Total Number
350
Conformers Submitted Total Number
30
Representative Model
6 (n/a)
Additional NMR Experimental Information
Details
This structure was determined using standard 2D homonuclear and heteronuclear techniques