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E.coli phosphoribosylpyrophosphate (PRPP) synthetase type A(AMP/ADP) filament bound with ADP, AMP and R5P
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4S2U
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 21.852 f_angle_d 0.766 f_chiral_restr 0.051 f_bond_d 0.008 f_plane_restr 0.004
Sample E.coli PRPP syhthetase filament structure complex with ADP,AMP, Mg2+ and R5P
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details blot for 3.5 seconds with blot force
of -1 before plunge-freezing
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 53045 Reported Resolution (Å) 2.6 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry D3
Map-Model Fitting and Refinement Id 1 (4S2U) Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 22500 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 3.1-beta IMAGE ACQUISITION SerialEM CTF CORRECTION CTFFIND MODEL FITTING UCSF Chimera 1.14 MODEL REFINEMENT Coot MODEL REFINEMENT PHENIX CLASSIFICATION RELION 3.1-beta RECONSTRUCTION RELION 3.1-beta
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1066797