2MME

Hybrid structure of the Shigella flexneri MxiH Type three secretion system needle


SOLID-STATE NMR - ELECTRON MICROSCOPY
NMR Experiment
ExperimentTypeSample ContentsSolventIonic StrengthpHPressureTemperature (K)Spectrometer
113C-13C (PDSD)20 mg [U-100% 13C; U-100% 15N] MxiHwet5.5ambient278
215N-13C (Specific-CP)20 mg [U-100% 13C; U-100% 15N] MxiHwet5.5ambient278
NMR Spectrometer Information
SpectrometerManufacturerModelField Strength
1BrukerAVANCE850
NMR Refinement
MethodDetailsSoftware
Rosetta fold-and-dock, Rosetta symmetric relaxsymmetric fragment-based Monte Carlo trials followed by full-atom refinement, symmetric refinement (relax) of backbone, sidechain, and rigid-body degrees of freedomRosetta
NMR Ensemble Information
Conformer Selection Criteriatarget function
Conformers Calculated Total Number5000
Conformers Submitted Total Number10
Representative Model1 (lowest energy)
Computation: NMR Software
#ClassificationVersionSoftware NameAuthor
1data analysisSparkyGoddard
2refinementRosetta
Sample
Shigella flexneri MxiH Type three secretion system needle
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentFEI VITROBOT MARK I
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles
Reported Resolution (Å)7.7
Resolution Method
Other Details
Refinement Type
Symmetry TypeHELICAL
Data Acquisition
Detector TypeTVIPS TEMCAM-F415 (4k x 4k)
Electron Dose (electrons/Å**2)20
Imaging Experiment1
Date of Experiment2008-07-02
Temperature (Kelvin)
Microscope ModelJEOL 3200FSC
Minimum Defocus (nm)1000
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification50000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details