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Two protofilament structure of alpha1B and betaI/IVb microtubule bound to GDP
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 8V2J
Sample Dynamic alpha1B and betaI/IVb microtubule
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument LEICA EM GP Cryogen Name ETHANE Sample Vitrification Details 5 ul of microtubules were applied to glow-discharged electron microscopy grids and allowed to absorb for 30 sec.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 939505 Reported Resolution (Å) 2.9 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (8V2J) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Cross-correlation Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 46
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 600 Maximum Defocus (nm) 2400 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 3.0 IMAGE ACQUISITION SerialEM CTF CORRECTION Gctf MODEL FITTING Coot MODEL FITTING ISOLDE INITIAL EULER ASSIGNMENT RELION 3.0 FINAL EULER ASSIGNMENT RELION 3.0 RECONSTRUCTION RELION 3.0 MODEL REFINEMENT PHENIX 1.20.1_4487:
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 167962