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NMR Structures of Single-chain Insulin
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-15N HSQC 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298 2 2D 1H-13C HSQC 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298 3 3D HNCACB 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298 4 3D CBCA(CO)NH 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298 5 3D HNCO 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298 6 3D C(CO)NH 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298 7 3D H(CCO)NH 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298 8 3D HCCH-TOCSY 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298 9 3D 1H-15N NOESY 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298 10 4D Time-shared NOESY (4D-N15,C13-edited and 4D-C13,C13-edited NOESY) 0.9 mM [U-100% 13C; U-100% 15N] insulin 93% H2O/7% D2O 0.1 7.0 ambient 298
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 800 2 Bruker AVANCE 700
NMR Refinement Method Details Software simulated annealing X-PLOR NIH
NMR Ensemble Information Conformer Selection Criteria structures with acceptable covalent geometry Conformers Calculated Total Number 70 Conformers Submitted Total Number 20 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 structure solution X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore 2 data analysis NMRDraw Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax 3 processing NMRPipe Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax 4 peak picking PIPP Garrett 5 collection XwinNMR Bruker Biospin 6 data analysis Insight II Accelrys Software Inc. 7 structure display MOLMOL Koradi, Billeter and Wuthrich 8 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore