8Q0J

Inward-facing, slack proteoliposome complex I at 3.8 A. Initially purified in DDM.


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 7QSO 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d12.0845
f_angle_d0.49
f_chiral_restr0.0382
f_bond_d0.0038
f_plane_restr0.0038
Sample
Complex I from Bos taurus reconstituted into proteoliposomes.
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK III
Cryogen NameETHANE
Sample Vitrification DetailsSample was incubated on grid for 30 s before plunge freezing
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles45661
Reported Resolution (Å)3.8
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (7QSO)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)39.9
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1000
Maximum Defocus (nm)3000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification81000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION4.0-beta
IMAGE ACQUISITIONEPU
CTF CORRECTIONCTFFIND4.1
MODEL FITTINGUCSF ChimeraX1.6.1
INITIAL EULER ASSIGNMENTRELION4.0-beta
FINAL EULER ASSIGNMENTRELION4.0-beta
CLASSIFICATIONRELION4.0-beta
RECONSTRUCTIONRELION4.0-beta
MODEL REFINEMENTPHENIX1.20.1-4487
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION