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The cryo-EM structure of Zika Virus
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument GATAN CRYOPLUNGE 3 Cryogen Name ETHANE Sample Vitrification Details Blot for 5 seconds before plunging into liquid ethane (GATAN CRYOPLUNGE 3).
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 11842 Reported Resolution (Å) 3.8 Resolution Method FSC 0.143 CUT-OFF Other Details Soft mark was applied to the even/odd map before FSC calculation. Refinement Type Symmetry Type POINT Point Symmetry I
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol AB INITIO MODEL Refinement Target T = Tmap + weight * TrestraintsT = Tmap + weight * Trestraints Overall B Value 150 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 23
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 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 14000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION Appion 3.2 IMAGE ACQUISITION Leginon CTF CORRECTION CTFFIND 3 MODEL REFINEMENT PHENIX 1.10.1-2155 INITIAL EULER ASSIGNMENT jspr 2015 FINAL EULER ASSIGNMENT jspr 2015 CLASSIFICATION jspr 2015 RECONSTRUCTION jspr 2015
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING ONLY Phase flipping was performed during 3D reconstruction. 64518 Particles were picked from 2-binned images using the template-picking method from Appion.