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2A cysteine proteinase from human coxsackievirus B4 (strain JVB / Benschoten / New York / 51)
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 simultaneously acquired 15N- and 13C-edited 3D NOESY 0.50 mM U-15N U-13C 2A proteinase
10 mM DTT
90% H2O, 10% D2O 90% H2O/10% D2O 50 mM potassium phosphate 7.6 ambient 303
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker DRX 500 2 Bruker DRX 600 3 Bruker DRX 800
NMR Refinement Method Details Software torsion angle dynamics
followed by cartesian slow-cool annealing
energy minimisation total of 1905 experimentally determined restraints,
1577 NOE-derived distance restraints,
168 dihedral angle restraints,
112 hydrogen bond distance restraints,
4 zinc-protein bond restraints,
16 zinc-protein angle restraints XwinNMR
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 17 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 collection XwinNMR 3.5 Bruker 2 processing Felix 2000 Accelrys Inc, San Diego, CA 3 data analysis Felix 2000 Accelrys Inc, San Diego, CA 4 structure solution CNS 1.1 Brunger, et al. 5 refinement CNS 1.1 Brunger, et al.