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Structure of the Membrane Protein MerF, a Bacterial Mercury Transporter, Improved by the Inclusion of Chemical Shift Anisotropy Constraints
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D DARR 2.0-3.0 mM [U-99% 13C; U-99% 15N] protein, 10.0-15.0 mM DMPC, 100 % H2O 100% H2O 6.0 ambient 298 2 2D NC correlation 2.0-3.0 mM [U-99% 13C; U-99% 15N] protein, 10.0-15.0 mM DMPC, 100 % H2O 100% H2O 6.0 ambient 298 3 3D HnNCa SLF 2.0-3.0 mM [U-99% 13C; U-99% 15N] protein, 10.0-15.0 mM DMPC, 100 % H2O 100% H2O 6.0 ambient 298 4 3D HnNCo SLF 2.0-3.0 mM [U-99% 13C; U-99% 15N] protein, 10.0-15.0 mM DMPC, 100 % H2O 100% H2O 6.0 ambient 298 5 3D HcCxCx SLF 2.0-3.0 mM [U-99% 13C; U-99% 15N] protein, 10.0-15.0 mM DMPC, 100 % H2O 100% H2O 6.0 ambient 298 6 2D HETCOR 1.0-6.0 mg/mL [U-98% 15N] protein, 8 mg DHPC, 40 mg DMPC, 170 uL H2O 100% H2O 6.0 ambient 315 7 3D HETCOR/SLF 1.0-6.0 mg/mL [U-98% 15N] protein, 8 mg DHPC, 40 mg DMPC, 170 uL H2O 100% H2O 6.0 ambient 315 8 SAMPI4 1.0-6.0 mg/mL [U-98% 15N] protein, 8 mg DHPC, 40 mg DMPC, 170 uL H2O 100% H2O 6.0 ambient 315 9 PISEMA 1.0-6.0 mg/mL [U-98% 15N] protein, 8 mg DHPC, 40 mg DMPC, 170 uL H2O 100% H2O 6.0 ambient 315
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 700 2 Varian DD2 800
NMR Refinement Method Details Software simulated annealing X-PLOR NIH
NMR Ensemble Information Conformer Selection Criteria structures with the lowest energy Conformers Calculated Total Number 100 Conformers Submitted Total Number 10 Representative Model 1 (lowest energy)
Computation: NMR Software # Classification Version Software Name Author 1 refinement X-PLOR NIH Schwieters, Kuszewski, Tjandra and Clore