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Magic-Angle-Spinning Solid-State NMR Structure of Influenza A M2 Transmembrane Domain
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 13C-13C DQF_COSY 4-6 mg/mL Selective U-13C, 15N labeled M2 Transmembrane Peptide, 15-25 mg/mL DLPC, 10 mM sodium phosphate, 0.1 mM sodium azide, 1 mM EDTA, 20-25 mL H2O Solid-State NMR: Hydrated DLPC gel, approx. 50% H2O by weight. DLPC:M2TMP:Amantadine 15:1:8 7.5 ambient 243 2 2D 15N-13C HETCOR 4-6 mg/mL Selective U-13C, 15N labeled M2 Transmembrane Peptide, 15-25 mg/mL DLPC, 10 mM sodium phosphate, 0.1 mM sodium azide, 1 mM EDTA, 20-25 mL H2O Solid-State NMR: Hydrated DLPC gel, approx. 50% H2O by weight. DLPC:M2TMP:Amantadine 15:1:8 7.5 ambient 243 3 2D DARR 4-6 mg/mL Selective U-13C, 15N labeled M2 Transmembrane Peptide, 15-25 mg/mL DLPC, 10 mM sodium phosphate, 0.1 mM sodium azide, 1 mM EDTA, 20-25 mL H2O Solid-State NMR: Hydrated DLPC gel, approx. 50% H2O by weight. DLPC:M2TMP:Amantadine 15:1:8 7.5 ambient 243 4 2D INADEQUATE 4-6 mg/mL Selective U-13C, 15N labeled M2 Transmembrane Peptide, 15-25 mg/mL DLPC, 10 mM sodium phosphate, 0.1 mM sodium azide, 1 mM EDTA, 20-25 mL H2O Solid-State NMR: Hydrated DLPC gel, approx. 50% H2O by weight. DLPC:M2TMP:Amantadine 15:1:8 7.5 ambient 243
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 600 2 Bruker DRX 400
NMR Refinement Method Details Software torsion angle dynamics TALOS TopSpin
NMR Ensemble Information Conformer Selection Criteria structures with the least restraint violations Conformers Calculated Total Number 1 Conformers Submitted Total Number 1 Representative Model 1 (fewest violations)
Computation: NMR Software # Classification Version Software Name Author 1 collection TopSpin 1.3 Bruker Biospin 2 structure solution Insight II 2005 Accelrys Software Inc. 3 refinement Insight II 2005 Accelrys Software Inc.