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P22 procapsid coat protein structures reveal a novel mechanism for capsid maturation: Stability without auxiliary proteins or chemical cross-links
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1OHG experimental model PDB 1FHG
Sample P22 Heat Expanded Heads
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument HOMEMADE PLUNGER Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 3308 Reported Resolution (Å) 8.2 Resolution Method FSC 0.5 CUT-OFF Other Details Final map was calculated at 7.0A resolution ( Details about the particle: data were collected on film ) Refinement Type Symmetry Type POINT Point Symmetry I
Map-Model Fitting and Refinement Id 1 (1OHG) 2 (1FHG) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target cross-correlation coefficient Overall B Value Fitting Procedure Details METHOD--local refinement, flexible fitting REFINEMENT PROTOCOL--rigid body
Data Acquisition Detector Type KODAK SO-163 FILM Electron Dose (electrons/Å**2) 8
Imaging Experiment 1 Date of Experiment 2009-01-01 Temperature (Kelvin) 90 Microscope Model FEI POLARA 300 Minimum Defocus (nm) 630 Maximum Defocus (nm) 3160 Minimum Tilt Angle (degrees) -9999 Maximum Tilt Angle (degrees) -9999 Nominal CS 2.3 Imaging Mode BRIGHT FIELD Specimen Holder Model OTHER Nominal Magnification 39000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version MODEL FITTING Coot MODEL FITTING MODELLER RECONSTRUCTION Auto3DEM
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details ROBEM