2KWX

The V27A mutant of influenza A M2 proton channel


SOLUTION NMR
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
12D 1H-15N TROSY0.70 mM [U-100% 13C; U-100% 15N; U-80% 2H] Influenza M2 V27A mutant-295% H2O/5% D2O~0.17.5ambient30
23D TROSY HNCO0.70 mM [U-100% 13C; U-100% 15N; U-80% 2H] Influenza M2 V27A mutant-295% H2O/5% D2O~0.17.5ambient30
33D TROSY HNCA0.70 mM [U-100% 13C; U-100% 15N; U-80% 2H] Influenza M2 V27A mutant-295% H2O/5% D2O~0.17.5ambient30
43D TROSY HN(CO)CA0.70 mM [U-100% 13C; U-100% 15N; U-80% 2H] Influenza M2 V27A mutant-295% H2O/5% D2O~0.17.5ambient30
53D TROSY HNCACB0.70 mM [U-100% 13C; U-100% 15N; U-80% 2H] Influenza M2 V27A mutant-295% H2O/5% D2O~0.17.5ambient30
63D 1H-15N NOESY TROSY0.75 mM [U-99% 13C; U-99% 15N] Influenza M2 V27A mutant-195% H2O/5% D2O~0.17.5ambient30
73D 1H-13C NOESY TROSY0.75 mM [U-99% 13C; U-99% 15N] Influenza M2 V27A mutant-195% H2O/5% D2O~0.17.5ambient30
82D 1H-13C HSQC0.75 mM [U-99% 13C; U-99% 15N] Influenza M2 V27A mutant-195% H2O/5% D2O~0.17.5ambient30
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerAvance600
NMR Refinement
MethodDetailsSoftware
simulated annealing, molecular dynamicsStandard simulated annealing protocol with cooling from 1000K to 20K, 6.7 ps of Verlet dynamics at each temperature step, using a time step of 3 fsX-PLOR_NIH
NMR Ensemble Information
Conformer Selection Criteriastructures with the lowest energy
Conformers Calculated Total Number75
Conformers Submitted Total Number15
Representative Model1 (lowest energy)
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1structure solutionX-PLOR_NIH2.24Schwieters, Kuszewski, Tjandra and Clore
2refinementX-PLOR_NIH2.24Schwieters, Kuszewski, Tjandra and Clore