8DMX

Cryo-EM structure of skeletal muscle alpha-actin


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d4.227
f_angle_d0.493
f_chiral_restr0.042
f_plane_restr0.005
f_bond_d0.002
Sample
actin
Specimen Preparation
Sample Aggregation StateFILAMENT
Vitrification InstrumentLEICA EM GP
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles261195
Reported Resolution (Å)3.37
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC1
Axial Rise28
Angular Rotation-166
Map-Model Fitting and Refinement
Id1 (6DJO)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value90
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)65
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)200
Maximum Defocus (nm)1500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification81000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC
IMAGE ACQUISITIONEPU
CTF CORRECTIONcryoSPARC
MODEL FITTINGCoot
MODEL REFINEMENTPHENIX
INITIAL EULER ASSIGNMENTcryoSPARC
FINAL EULER ASSIGNMENTcryoSPARC
CLASSIFICATIONcryoSPARC
RECONSTRUCTIONcryoSPARC
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
NONESingle Particle