8PEX

Rho P167L-ATPgS-Psu complex I


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1PV4 
experimental modelPDB 3RX6 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d5.792
f_angle_d0.625
f_chiral_restr0.043
f_plane_restr0.004
f_bond_d0.003
Sample
Complex of E. coli transcription termination factor Rho P167L variant with the ATP analog, ATPgammaS and P4 polarity suppression protein Psu
Sample Components
Transcription termination factor Rho
Polarity suppression protein
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameNITROGEN
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles273935
Reported Resolution (Å)3.1
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (1PV4, 3RX6)
Refinement SpaceREAL
Refinement Protocol
Refinement TargetCross-correlation coefficient
Overall B Value
Fitting Procedure
DetailsCrystal structures of Rho (PDB ID: 1PV4) and Psu (PDB ID: 3RX6) were manually placed in the cryoEM reconstructions and each protomer was adjusted by r ...Crystal structures of Rho (PDB ID: 1PV4) and Psu (PDB ID: 3RX6) were manually placed in the cryoEM reconstructions and each protomer was adjusted by rigid body fitting and segmental real-space refinement using Coot (version 0.9.6). The model was refined by iterative rounds of real space refinement in PHENIX (version 1.20_4459) and manual adjustment in Coot.
Data Acquisition
Detector TypeFEI FALCON III (4k x 4k)
Electron Dose (electrons/Å**2)42
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)900
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARCv3.2.0
IMAGE ACQUISITIONEPU2.9
CTF CORRECTIONcryoSPARCv3.2.0
MODEL FITTINGCoot0.9.6
MODEL REFINEMENTPHENIX1.20_4459
INITIAL EULER ASSIGNMENTcryoSPARCv3.2.0
FINAL EULER ASSIGNMENTcryoSPARCv3.3.0
CLASSIFICATIONcryoSPARCv3.3.0
RECONSTRUCTIONcryoSPARCv3.3.0
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION823078