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Cre recombinase mutant (D33A/A36V/R192A) in complex with loxA DNA hairpin
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2HOI
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 21.783 f_angle_d 0.805 f_chiral_restr 0.047 f_plane_restr 0.011 f_bond_d 0.005
Sample Complex of Cre recombinase mutant D33A/A36V/R192A and loxA DNA hairpin
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE-PROPANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 146715 Reported Resolution (Å) 3.91 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (2HOI) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target correlation coefficient Overall B Value 248.4 Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2200 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION Topaz IMAGE ACQUISITION EPU 2.7 CTF CORRECTION cryoSPARC 3.0.1 MODEL FITTING ISOLDE 1.2 INITIAL EULER ASSIGNMENT cryoSPARC 3.0.1 FINAL EULER ASSIGNMENT cryoSPARC 3.0.1 RECONSTRUCTION cryoSPARC 3.0.1 MODEL REFINEMENT PHENIX 1.19
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 898039