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PDB Id
Uniprot Id
Source Organism
Host Organism
Protein Name
Method
Summary
Structure Feature
Experiment
Ligands & Environment
8A2S
pdb_00008a2s
10.2210/pdb8a2s/pdb
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FASTA
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Binary MMCIF
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Structure Factors
Full Validation Report
Validation File (XML)
Validation File (CIF)
FASTA Zipped(.gz)
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Binary MMCIF Zipped(.gz)
Structure Factors Zipped(.gz)
Validation File Zipped (.xml.gz)
Validation File Zipped (.cif.gz)
ELECTRON MICROSCOPY
Sample
rabbit skeletal alpha-actin in the filamentous state.
Specimen Preperation
Sample Aggregation State
FILAMENT
Vitrification Instrument
FEI VITROBOT MARK IV
Cryogen Name
ETHANE-PROPANE
Sample Vitrification Details
The Vitrobot was operated at 13 degrees celsius and the samples were blotted for 9 seconds with a blot force of -25.
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
1808554
Reported Resolution (Å)
2.22
Resolution Method
FSC 0.143 CUT-OFF
Other Details
?
Refinement Type
Symmetry Type
POINT
Map-Model Fitting and Refinement
ID
1
Refinement Space
REAL
Refinement Protocol
FLEXIBLE FIT
Refinement Target
?
Overall B Value
?
Fitting Procedure
?
Details
The structures were then refined through a similar protocol of iterative cycles in Coot and phenix real-space refine. All solvent molecules (ions, waters) were placed manually in Coot in the central actin subunit, and were then placed in the other subunits using NCS. Because the local resolution of each F-actin reconstruction is highest in the center and lower at the periphery of the map, we inspected all waters in each structure manually before the final phenix refinement; water molecular with poor corresponding cryo-EM density were removed.
Data Acquisition
Detector Type
GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å
2
)
88.8
Imaging Experiment
Date of Experiment
?
Temprature (Kelvin)
Microscope Model
FEI TITAN KRIOS
Minimum Defocus (nm)
700
Maximum Defocus (nm)
2000
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
130000
Calibrated Magnification
?
Source
FIELD EMISSION GUN
Acceleration Voltage (kV)
300
Imaging Details
?
Imaging Experiment
Task
Software Package
Version
PARTICLE SELECTION
crYOLO
1.8
IMAGE ACQUISITION
EPU
?
CTF CORRECTION
CTFFIND
4.13
MODEL FITTING
UCSF ChimeraX
1.3
MODEL REFINEMENT
PHENIX
v1.20.1-4487
INITIAL EULER ASSIGNMENT
SPHIRE
1.4
FINAL EULER ASSIGNMENT
RELION
3.1.0
CLASSIFICATION
RELION
3.1.0
RECONSTRUCTION
RELION
3.1.0
Image Processing
CTF Correction Type
CTF Correction Details
Number of Particles Selected
Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION
?
