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The structure of the Plasmodium falciparum 20S proteasome in complex with one PA28 activator
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6DFK experimental model PDB 6MUW
Sample 20S proteasome/PA28 complex. Sample Components Plasmodium falciparum 20S proteasome 11S activator of the Plasmodium falciparum proteasome.
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details wait time 0sec
blot time 2sec
blot force -1
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 57337 Reported Resolution (Å) 3.9 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (6DFK, 6MUW) Refinement Space REAL Refinement Protocol AB INITIO MODEL Refinement Target Overall B Value 82.68 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 QUANTUM (4k x 4k) Electron Dose (electrons/Å**2) 32
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TALOS ARCTICA Minimum Defocus (nm) 1000 Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 100000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 2.1 IMAGE ACQUISITION EPU CTF CORRECTION Gctf 1.06 MODEL FITTING UCSF Chimera INITIAL EULER ASSIGNMENT RELION 2.1 FINAL EULER ASSIGNMENT RELION 2.1 CLASSIFICATION RELION 2.1 RECONSTRUCTION RELION 3.0 MODEL REFINEMENT PHENIX 1.14
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE 212749 Relion autopick from 5 class averages resulting from 200o0 particle picked manually