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Structural basis for DNA strand separation by a hexameric replicative helicase
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2V9P
Sample HELICASE DOMAIN OF THE FULL-LENGTH E1 HELICASE FROM BOVINE PAPILLOMAVIRUS
Specimen Preparation Sample Aggregation State PARTICLE Staining Type NEGATIVE Staining Material uranyl acetate Staining Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 8265 Reported Resolution (Å) 19 Resolution Method Other Details SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3087. (DEPOSITION ID: 13536). Refinement Type Symmetry Type POINT Point Symmetry C6
Map-Model Fitting and Refinement Id 1 (2V9P) Refinement Space REAL Refinement Protocol OTHER Refinement Target Cross-correlation coefficient Overall B Value Fitting Procedure Details METHOD--LOCAL CORRELATION REFINEMENT PROTOCOL--X-RAY
Data Acquisition Detector Type GATAN ULTRASCAN 4000 (4k x 4k) Electron Dose (electrons/Å**2) 20
Imaging Experiment 1 Date of Experiment 2010-02-18 Temperature (Kelvin) 293 Microscope Model FEI TECNAI F20 Minimum Defocus (nm) 500 Maximum Defocus (nm) 1500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.1 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 62000 Calibrated Magnification 67000 Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version CTF CORRECTION CTFFIND 3 CTF CORRECTION ctfit MODEL FITTING UCSF Chimera RECONSTRUCTION IMAGIC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details FRAMES