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Cryo-EM structure of microtubule-bound Kif7 in the AMPPNP state
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3J6G experimental model PDB 4A14
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 10.712 f_angle_d 1.101 f_chiral_restr 0.06 f_bond_d 0.007 f_plane_restr 0.007
Sample Microtubule-bound Kif7
Specimen Preparation Sample Aggregation State HELICAL ARRAY Vitrification Instrument HOMEMADE PLUNGER Cryogen Name ETHANE Sample Vitrification Details Blotted from behind the grid for 2 seconds
3D Reconstruction Reconstruction Method HELICAL Number of Particles 37220 Reported Resolution (Å) 4.2 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 8.83 Angular Rotation -25.76
Map-Model Fitting and Refinement Id 1 (3J6G, 3J6G, 4A14) Refinement Space Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 37
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version CTF CORRECTION CTFFIND 4 MODEL FITTING UCSF Chimera 1.11.2 MODEL REFINEMENT PHENIX 1.12-2829 RECONSTRUCTION FREALIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING ONLY CTF correction using CTFFIND4 84000 segmnets were picked along helical segments manually using appion