9FL9 | pdb_00009fl9

Cryo-EM structure of the human KEOPS complex


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6WQX 
experimental modelPDB 6GWJ 
Sample
human KEOPS complex
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsBlotting force 2, blotting time 8 s
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles214527
Reported Resolution (Å)3.74
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (6WQX, 6GWJ)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeTFS FALCON 4i (4k x 4k)
Electron Dose (electrons/Å**2)40
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS 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 Magnification165000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC4.2.1
IMAGE ACQUISITIONEPU
CTF CORRECTIONCTFFIND4
CTF CORRECTIONcryoSPARC4.2.1
MODEL FITTINGPHENIX1.20.1_4487
MODEL FITTINGUCSF Chimera
MODEL FITTINGNAMD1.0
INITIAL EULER ASSIGNMENTcryoSPARC4.2.1
FINAL EULER ASSIGNMENTcryoSPARC4.2.1
RECONSTRUCTIONcryoSPARC4.2.1
MODEL REFINEMENTPHENIX1.20.1_4487
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION