6RWY

Export apparatus core and inner rod of the Shigella type 3 secretion system


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6F2D 
experimental modelPDB 2MME 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d11.61
f_angle_d0.805
f_chiral_restr0.043
f_plane_restr0.006
f_bond_d0.004
Sample
Export apparatus core, inner rod and start of the needle of the Shigella type 3 secretion system
Sample Components
Export apparatus core
Inner rod
Needle
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsSample applied on grid 5 ul, incubation time 5 min on ice, then moved into Vitrobot and 5 ul sample applied again. Blot time: 2 sec Blot force: -2 Dra ...Sample applied on grid 5 ul, incubation time 5 min on ice, then moved into Vitrobot and 5 ul sample applied again. Blot time: 2 sec Blot force: -2 Drain time: 0 sec
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles72298
Reported Resolution (Å)5.11
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (6F2D, 6F2D, 6F2D, 2MME)
Refinement SpaceREAL
Refinement Protocol
Refinement TargetCross-correlation coefficient
Overall B Value162
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON II (4k x 4k)
Electron Dose (electrons/Å**2)25
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1.5
Maximum Defocus (nm)4
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification101179
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION1.4
CTF CORRECTIONCTFFIND3.5
MODEL FITTINGUCSF Chimera1.13.1
MODEL FITTINGiMODFIT1.44
INITIAL EULER ASSIGNMENTRELION2.1
FINAL EULER ASSIGNMENTRELION2.1
CLASSIFICATIONRELION2.1
RECONSTRUCTIONRELION2.1
MODEL REFINEMENTPHENIX3409
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION171833