9T0K | pdb_00009t0k

Catalase CryoEM Structure from Human erythrocyte at 1.87A resolution


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 7P8W 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
s_angle_nonh_d1.52060475
s_bond_nonh_d0.00719045689
Sample
Catalase with cofactor NADPH
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentHOMEMADE PLUNGER
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles1070801
Reported Resolution (Å)1.87
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryD2
Map-Model Fitting and Refinement
Id1 (7P8W)
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)50.4
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)1700
Maximum Defocus (nm)2230
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification155000
Calibrated Magnification273437
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging DetailsThere was 1 optical group with AFIS up to 3 microns.
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONTopaz
IMAGE ACQUISITIONEPU
CTF CORRECTIONRELION4.0
MODEL FITTINGCoot0.9.8.93
INITIAL EULER ASSIGNMENTRELION4.0
FINAL EULER ASSIGNMENTRELION4.0
CLASSIFICATIONRELION4.0
RECONSTRUCTIONRELION4.0
MODEL REFINEMENTServalcat0.4.72
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION21878751676 particles picked manually for Topaz training set.