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Unbound state of a brocolli-pepper aptamer FRET tile.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7PTQ experimental model PDB 7EOP
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.6795 f_angle_d 0.6507 f_chiral_restr 0.0405 f_plane_restr 0.0034 f_bond_d 0.0024
Sample Unbound state of a brocolli-pepper aptamer FRET tile
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument LEICA EM GP Cryogen Name ETHANE Sample Vitrification Details 3 uL sample, blotted onto double layer of whatman filter paper for 6 seconds.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 51278 Reported Resolution (Å) 4.55 Resolution Method FSC 0.143 CUT-OFF Other Details Local refinement was performed in cryoSPARC using a mask that covers the entire particle volume Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7PTQ, 7EOP) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value 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 FEI TITAN KRIOS Minimum Defocus (nm) 700 Maximum Defocus (nm) 2000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 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 cryoSPARC 3 MODEL FITTING UCSF ChimeraX MODEL REFINEMENT PHENIX MODEL REFINEMENT ISOLDE 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 478981 Picked from templates generated from an ab initio model