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Cyanide dihydratase from Bacillus pumilus C1 variant - Q86R,H305K,H308K,H323K
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.12 f_angle_d 0.498 f_chiral_restr 0.042 f_plane_restr 0.004 f_bond_d 0.003
Sample Active helical nitrilase homo-oligomer of cyanide dihydratase from Bacillus pumilus C1 variant (Q86R/H305K/H308K/H323K)
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details A 2.5 microlitre sample was applied onto a glow-discharged grid, blotted and plunged without incubation.
3D Reconstruction Reconstruction Method HELICAL Number of Particles 103000 Reported Resolution (Å) 3.15 Resolution Method FSC 0.5 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C2 Axial Rise 16.7 Angular Rotation -77
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol AB INITIO MODEL Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 54
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 600 Maximum Defocus (nm) 3000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 130000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version CTF CORRECTION RELION 2.1 MODEL FITTING UCSF Chimera 1.15 RECONSTRUCTION RELION 2.1 MODEL REFINEMENT PHENIX 1.20.1-4487 MODEL REFINEMENT ISOLDE 1.1 MODEL REFINEMENT Coot 0.9.8.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING ONLY