☰ Navigation Tabs
Cryo-EM structure of filament form Acidithiobacillus caldus (Aca) short prokaryotic argonautes, HNH-associated (SPARHA) with gRNA and tDNA
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details in silico model AlphaFold
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 17.8646 f_angle_d 0.8454 f_chiral_restr 0.0526 f_plane_restr 0.0078 f_bond_d 0.0042
Sample Acidithiobacillus caldus SPARHA complex with guide RNA and target DNA Sample Components SPARHA complex guide RNA and target DNA
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 103628 Reported Resolution (Å) 3.38 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TALOS ARCTICA Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2000 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) 200 Imaging Details
EM Software Task Software Package Version CTF CORRECTION cryoSPARC 4.6.2 MODEL FITTING UCSF ChimeraX 1.9 RECONSTRUCTION cryoSPARC 4.6.2 RECONSTRUCTION cryoSPARC 4.6.2 MODEL REFINEMENT PHENIX dev_5330
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION