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CryoEM structure of the Chikungunya virus nsP1 capping pores in complex with SAM
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6Z0V
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 8.3587 f_angle_d 0.6403 f_chiral_restr 0.0439 f_bond_d 0.005 f_plane_restr 0.0043
Sample CHIKV nsP1 capping pores in complex with S-adenosyl methionine (SAM) ligand.
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 69057 Reported Resolution (Å) 2.8 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry D12
Map-Model Fitting and Refinement Id 1 (6Z0V) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Correlation coefficient Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 42.4
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU CTF CORRECTION CTFFIND MODEL FITTING Coot MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT RELION FINAL EULER ASSIGNMENT RELION RECONSTRUCTION RELION
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 366156