7UNR

Pseudomonas aeruginosa 70S ribosome initiation complex bound to compact IF2-GDP (composite structure I-A)


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6SPG 
experimental modelPDB 3JCJ 
Sample
Pseudomonas aeruginosa 70S ribosome initiation complex bound to compact IF2-GDP (composite structure I-A)
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentLEICA EM GP
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles21480
Reported Resolution (Å)2.9
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (6SPG, 3JCJ)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)31
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)200
Maximum Defocus (nm)2100
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification105000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC3.1.0
IMAGE ACQUISITIONEPU2.11.1
CTF CORRECTIONcryoSPARC3.1.0
MODEL FITTINGCoot0.8.9.1
MODEL FITTINGUCSF Chimera1.14
INITIAL EULER ASSIGNMENTcryoSPARC3.1.0
FINAL EULER ASSIGNMENTcryoSPARC3.1.0
CLASSIFICATIONcryoSPARC3.1.0
RECONSTRUCTIONcryoSPARC3.1.0
MODEL REFINEMENTPHENIX1.19.2
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION878576