7P13

2.29 A Mycobacterium tuberculosis EspB.


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d5.5177
f_angle_d1.0538
f_chiral_restr0.0672
f_bond_d0.0159
f_plane_restr0.0075
Sample
heptamer of EspB
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles484786
Reported Resolution (Å)2.29
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC7
Map-Model Fitting and Refinement
Id1 (4XXX)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement TargetCorrelation coefficient
Overall B Value32.59
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)40
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification105000
Calibrated Magnification105000
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging DetailsBasic direct alignments were done as well as astigmatism and coma alignment using AutoCTF
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU2.6.1
CTF CORRECTIONGctf1.06
MODEL FITTINGCoot0.9.4
INITIAL EULER ASSIGNMENTRELION3.1
FINAL EULER ASSIGNMENTRELION3.1
CLASSIFICATIONRELION3.1
RECONSTRUCTIONRELION3.1
MODEL REFINEMENTPHENIX1.18.2
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION484786