7AHN

Cryo-EM structure of F-actin stabilized by cis-optoJASP-8


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d20.367
f_angle_d1.115
f_chiral_restr0.066
f_plane_restr0.029
f_bond_d0.012
Sample
Filamentous alpha actin stabilized by cis-optoJASP-8 in complex with ADP-Pi
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentFEI VITROBOT MARK III
Cryogen NameETHANE
Sample Vitrification Details1.5 mul sample, automatic blotting for 7-7.5s, blot force -25, drain time 1s.
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles676237
Reported Resolution (Å)2.9
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC1
Axial Rise27.5
Angular Rotation166.8
Map-Model Fitting and Refinement
Id1 (6FHL)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
DetailsAn initial model of cis-opto-ASP-8 was generated using elBow within Phenix inputting the SMILES string.
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)86
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU
CTF CORRECTIONCTFFIND4.1.5
CTF CORRECTIONSPHIRE1.2
MODEL FITTINGUCSF Chimera
INITIAL EULER ASSIGNMENTSPHIRE1.2
FINAL EULER ASSIGNMENTSPHIRE1.2
RECONSTRUCTIONSPHIRE1.2
MODEL REFINEMENTPHENIX1.10 and 1.17
MODEL REFINEMENTISOLDE
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION806158