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Cryo-EM structure of T4 Bacteriophage Clamp Loader with Sliding Clamp and DNA
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.422 f_angle_d 0.576 f_chiral_restr 0.044 f_bond_d 0.004 f_plane_restr 0.004
Sample T4 Bacteriophage Clamp Loader with Sliding Clamp and DNA (gp44+gp62+gp45+DNA) Sample Components T4 Bacteriophage Sliding Clamp (gp45) T4 Bacteriophage Clamp Loader (gp44 + gp62) T4 Bacteriophage Clamp Loader subunit A (gp62) T4 Bacteriophage Clamp Loader subunits B,C,D,E(gp44) primed DNA duplex
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 204448 Reported Resolution (Å) 3.15 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 2200 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 PARTICLE SELECTION cryoSPARC 3 IMAGE ACQUISITION SerialEM CTF CORRECTION cryoSPARC 3 MODEL FITTING UCSF Chimera MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT cryoSPARC 3 FINAL EULER ASSIGNMENT cryoSPARC 3 CLASSIFICATION cryoSPARC 3 RECONSTRUCTION cryoSPARC 3
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 4206415