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sx20S complex (NSF-alphaSNAP-syntaxin-1a), 4:4 alphaSNAP-syntaxin-1a subcomplex local refinement, non-hydrolyzing, class 1
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6MDM experimental model PDB 1N7S
Sample The sx20S complex of NSF, alphaSNAP, and soluble syntaxin-1a Sample Components Subcomplex of alphaSNAP-syntaxin-1a Homohexameric NSF Homotetrameric Syntaxin-1a alphaSNAP
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 53244 Reported Resolution (Å) 4.07 Resolution Method FSC 0.143 CUT-OFF Other Details Reconstruction performed using cryoSPARC local refinement following signal subtraction of all NSF domains. Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (6MDM, 1N7S) Refinement Space Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 27.608
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 3000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 22500 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION IMAGE ACQUISITION SerialEM CTF CORRECTION CTFFIND 4 CTF CORRECTION RELION 3.1.4 MODEL FITTING Coot 0.9 MODEL FITTING UCSF ChimeraX MODEL REFINEMENT PHENIX 1.21 INITIAL EULER ASSIGNMENT RELION 3.1.4 FINAL EULER ASSIGNMENT cryoSPARC 3.2.0 CLASSIFICATION RELION 3.1.4 RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 975203