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Cryo-electron microscopy reconstruction of the helical part of influenza A virus ribonucleoprotein isolated from virions.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2IQH
Sample NATIVE INFLUENZA A VIRUS RIBONUCLEOPROTEIN (STRAIN A WSN 33, H1N1)
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument LEICA EM CPC Cryogen Name ETHANE Sample Vitrification Details VITRIFICATION 1 -- CRYOGEN- ETHANE, INSTRUMENT- LEICA EM CPC, METHOD- BLOT FOR 2 SECONDS BEFORE PLUNGING,
3D Reconstruction Reconstruction Method HELICAL Number of Particles 876 Reported Resolution (Å) 18 Resolution Method Other Details SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2205.(DEPOSITION ID: 10953). Refinement Type Symmetry Type HELICAL
Map-Model Fitting and Refinement Id 1 (2IQH) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target VOLUMETRIC Overall B Value Fitting Procedure Details METHOD--RIGID BODY REFINEMENT PROTOCOL--X-RAY
Data Acquisition Detector Type FEI EAGLE (4k x 4k) Electron Dose (electrons/Å**2)
Imaging Experiment 1 Date of Experiment 2011-01-01 Temperature (Kelvin) Microscope Model FEI TECNAI F20 Minimum Defocus (nm) 1500 Maximum Defocus (nm) 3500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.26 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 65000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version MODEL FITTING Situs MODEL FITTING UCSF Chimera RECONSTRUCTION IHRSR RECONSTRUCTION SPIDER RECONSTRUCTION Xmipp
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details EACH PLATE