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Model of human kinesin-5 motor domain (1II6, 3HQD) and mammalian tubulin heterodimer (1JFF) docked into the 9.5-angstrom cryo-EM map of microtubule-bound kinesin-5 motor domain in the rigor state.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1II6 experimental model PDB 3HQD experimental model PDB 1JFF
Sample 13-PROTOFILAMENT MICROTUBULE-BOUND HUMAN KINESIN-5 MOTOR DOMAIN IN ABSENCE OF NUCLEOTIDES
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK I Cryogen Name ETHANE Sample Vitrification Details LIQUID ETHANE
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 6748 Reported Resolution (Å) 9.5 Resolution Method Other Details THE LOOP 5 (119-131) WAS MODELED WITH MODELLER. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2078. (DEPOSITION ID: 10752). Refinement Type Symmetry Type HELICAL
Map-Model Fitting and Refinement Id 1 (1II6, 3HQD, 1JFF) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Cross-correlation coefficient Overall B Value Fitting Procedure Details METHOD--RIGID BODY (1JFF). RIGID BODY AND FLEXIBLE FITTING FOR THE CHIMERIC
MODEL BUILT USING 1II6 AND 3HQD. REFINEMENT PROTOCOL--X-RAY
Data Acquisition Detector Type KODAK SO-163 FILM Electron Dose (electrons/Å**2) 18
Imaging Experiment 1 Date of Experiment 2011-03-16 Temperature (Kelvin) 90 Microscope Model FEI TECNAI F20 Minimum Defocus (nm) 700 Maximum Defocus (nm) 2300 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 50000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version MODEL FITTING Flex-EM MODEL FITTING UCSF Chimera RECONSTRUCTION FREALIGN RECONSTRUCTION SPIDER
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details FREALIGN