9SKQ | pdb_00009skq

Cryo-EM structure of CAK-CDK1-cyclin B1


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 9QCV 
experimental modelPDB 5HQ0 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d4.802
f_angle_d0.579
f_chiral_restr0.041
f_plane_restr0.004
f_bond_d0.002
Sample
CAK-CDK1-cyclin B1 complex
Sample Components
CDK-activating kinase (CAK)
CDK1-cyclin B1
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles68765
Reported Resolution (Å)3.4
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (9QCV, 5HQ0)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeTFS FALCON 4i (4k x 4k)
Electron Dose (electrons/Å**2)60
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS GLACIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)1900
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification165000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC
IMAGE ACQUISITIONEPU
CTF CORRECTIONcryoSPARC
CTF CORRECTIONRELION5.0
MODEL FITTINGUCSF ChimeraX
INITIAL EULER ASSIGNMENTRELION5.0
FINAL EULER ASSIGNMENTRELION5.0
CLASSIFICATIONRELION4.0
RECONSTRUCTIONRELION5.0
MODEL REFINEMENTPHENIX1.21-5207
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION