7SAZ

Structure of GldLM, the proton-powered motor that drives Type IX protein secretion and gliding motility in Capnocytophaga canimorsus


ELECTRON MICROSCOPY
Sample
Type IX Secretion System/gliding motility GldLM motor complex
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsWait time 10 s Blot time 2 s
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles77223
Reported Resolution (Å)3
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolAB INITIO MODEL
Refinement Target
Overall B Value55.39
Fitting Procedure
DetailsA homology model based on the structure of FjoGldLM (PDB 6YS8) was used as a starting model and modified to fit the EM density using Coot. Refinement ...A homology model based on the structure of FjoGldLM (PDB 6YS8) was used as a starting model and modified to fit the EM density using Coot. Refinement was carried out using Phenix.
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)59
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONSIMPLE3.0
CTF CORRECTIONSIMPLE3.0
MODEL FITTINGCoot0.9.4.1
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 CORRECTION9197926