8PB9

Cryo-EM structure of the c-di-GMP-bound FleQ-FleN master regulator complex from Pseudomonas aeruginosa


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d6.641
f_angle_d0.824
f_chiral_restr0.043
f_bond_d0.011
f_plane_restr0.005
Sample
C-di-GMP bound FleQ-FleN complex from Pseudomonas aeruginosa
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Detailstriple deposition
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles1283732
Reported Resolution (Å)3.3
Resolution MethodOTHER
Other DetailsDue to flexibility, preferential orientation and partial occupancy for one of the subunits, the data was downsampled and the resolution used for refin ...Due to flexibility, preferential orientation and partial occupancy for one of the subunits, the data was downsampled and the resolution used for refinement was cut to 3.3 angstrom after Deep EMhancer sharpening.
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id123
Refinement SpaceREAL
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
DetailsCrystal structures fitting Refined in Phenix, coot and Namdinator
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)50.3
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
CTF CORRECTIONGctf
MODEL FITTINGPHENIX
MODEL FITTINGUCSF ChimeraX
CLASSIFICATIONcryoSPARC
RECONSTRUCTIONcryoSPARC
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTIONGctf through cryoSPARC interface