EMD-1987

Helical reconstruction
7.7 Å
EMD-1987 Deposition: 14/11/2011
Map released: 01/08/2012
Last modified: 01/08/2012
Overview 3D View Sample Experiment Validation Additional data Links
Overview 3D View Sample Experiment Validation Additional data Links

EMD-1987

Structure of the Actin-Tropomyosin-Myosin Complex (rigor ATM 3)

EMD-1987

Helical reconstruction
7.7 Å
EMD-1987 Deposition: 14/11/2011
Map released: 01/08/2012
Last modified: 01/08/2012
Overview 3D View Sample Experiment Validation Additional data Links
Method: Helical reconstruction
Aggregation State: Filament
Specimen preparation [1]
Concentration: 0.01 mg/mL
Buffer
pH: 7.2
Details: 5mM Tris, 100mM KCl, 2mM MgCl2, 50mM glutamine, 50mM arginine
Grid
Details: C-Flat CF-2/1-4C copper 400 mesh
Vitrification
Cryogen name: ETHANE
Chamber humidity: 90%
Chamber temperature: 101 K
Instrument: GATAN CRYOPLUNGE 3
Method: Manual blotting for approximately 15 seconds
Details: Vitrification instrument: Gatan Cryoplunge 3
Microscopy [1]
Microscope: JEOL 3200FSC
Illumination mode: FLOOD BEAM
Imaging mode: BRIGHT FIELD
Electron source: FIELD EMISSION GUN
Acceleration voltage: 200 kV
Nominal CS: 4.1 mm
Nominal defocus: 0.75 µm - 1.5 µm
Nominal magnification: 80000.0
Calibrated magnification: 169644.0
Specimen holder model: JEOL 3200FSC CRYOHOLDER
Specimen holder details: Cryogenic stage with side entry access
Alignment procedure: LEGACY (Astigmatism: objective lens astigmatism was corrected at 150,000 times magnification, Electron beam tilt params: )
Temperature
Average: 77 K
Specialist optics
Energy filter
Name: In-column Omega filter
Lower energy threshold: 0.0 eV
Upper energy threshold: 12.0 eV
Image Recording [1]
Detector category: CCD
Detector model: TVIPS TEMCAM-F816 (8k x 8k)
Sampling interval: 15.6 µm
Number of real images: 836
Average electron dose per image: 17 e/Å2
Bits per pixel: 14.0
Details: Over 3000 images were taken of which only the best 836 were used for processing
Image processing [1]
Details: Particles were selected by hand using e2helixboxer
Final reconstruction
Resolution: 7.7 Å ( BY AUTHOR)
Resolution method: FSC 0.5 CUT-OFF
Algorithm: OTHER
Details: Particles were classified using CODIM
Applied Symmetry
ΔΖ: 27.6 Å
ΔΦ: 166.5°
Software [1]
Name Version Details
SPARX - -
CTF correction
Details: Each particle
Map
Format: CCP4
Data type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation details: Conformation 3 of the F-actin-myo1E-tropomyosin complex
Details: ::::EMDATABANK.org::::EMD-1987::::
Geometry
X Y Z
Origin 0 0 0
Dimensions (px) 160 160 220
Dimensions (Å) 294.4 294.4 404.80002
Voxel size (Å) 1.84 1.84 1.84
Contour list
Primary Level Source
True 0.0125 AUTHOR