8EKI | pdb_00008eki

CryoEM structure of the Dsl1 complex bound to SNAREs Sec20 and Use1


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d7.402
f_angle_d0.693
f_chiral_restr0.043
f_bond_d0.005
f_plane_restr0.004
Sample
Dsl1 complex bound to SNARE proteins Sec20 and Use1
Sample Components
Dsl1 Complex
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsForce=0 Wait Time=0 Blot Time=6s Drain Time=0
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles49947
Reported Resolution (Å)4.5
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)45
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1250
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC4.1.1
IMAGE ACQUISITIONEPU
CTF CORRECTIONcryoSPARC4.1.1
MODEL REFINEMENTPHENIX
INITIAL EULER ASSIGNMENTcryoSPARC4.1.1
FINAL EULER ASSIGNMENTcryoSPARC4.1.1
CLASSIFICATIONcryoSPARC4.1.1
RECONSTRUCTIONCoot0.8.9.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTIONcorrection was performed using the Patch CTF Estimation tool in CryoSPARC469193Particles were template-picked utilizing a low-resolution density map of the complex, generated from an initial subset of the data.