7K20

Cryo-EM structure of pyrene-labeled ADP-actin filaments


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d11.08
f_angle_d0.953
f_chiral_restr0.064
f_bond_d0.013
f_plane_restr0.007
Sample
Pyrene-labeled ADP-actin filaments
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles268618
Reported Resolution (Å)3.2
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC1
Axial Rise27.385195
Angular Rotation-166.57869
Map-Model Fitting and Refinement
Id1 (6DJN)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
DetailsRestraints for pyrene were generated with eLBOW in Phenix. The coordinates of actin and pyrene were joined together manually in a text editor, and the ...Restraints for pyrene were generated with eLBOW in Phenix. The coordinates of actin and pyrene were joined together manually in a text editor, and then fitted into the map in Coot.
Data Acquisition
Detector TypeGATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å**2)67.9
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 CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
CTF CORRECTIONGctf1.18
MODEL FITTINGCoot1.3.0
RECONSTRUCTIONRELION3.08
MODEL REFINEMENTPHENIX3.12
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION