5JLH
Cryo-EM structure of a human cytoplasmic actomyosin complex at near-atomic resolution
ELECTRON MICROSCOPY
Refinement
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_long_range_B_other | 37.636 |
r_long_range_B_refined | 37.635 |
r_dihedral_angle_2_deg | 27.036 |
r_scangle_other | 22.84 |
r_mcangle_other | 18.922 |
r_mcangle_it | 18.921 |
r_scbond_it | 13.206 |
r_scbond_other | 13.204 |
r_dihedral_angle_3_deg | 13.084 |
r_dihedral_angle_4_deg | 11.793 |
Sample |
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F-actin-myosin-tropomyosin complex |
Sample Components |
actin, myosin |
tropomyosin |
Specimen Preparation | |
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Sample Aggregation State | FILAMENT |
Vitrification Instrument | GATAN CRYOPLUNGE 3 |
Cryogen Name | ETHANE |
Sample Vitrification Details | Sample (2 uL of F-actin-tropomyosin solution) was applied to a glow-discharged holey carbon grid, incubated for 20 s and manually blotted from the bac ... |
Embedding Material | I |
Embedding Details |
3D Reconstruction | |
---|---|
Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 118000 |
Reported Resolution (Å) | 3.9 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | THE TROPOMYOSIN MAP FILTERED TO 7.0 ANGSTROM WAS MERGED WITH THE FINAL F-ACTIN-MYOSIN MAP (3.9 ANGSTROM) TO OBTAIN A MAP OF THE ENTIRE F-ACTIN-MYOSIN- ... |
Refinement Type | |
Symmetry Type | HELICAL |
Axial Symmetry | C1 |
Axial Rise | 27.5 |
Angular Rotation | 166.9 |
Map-Model Fitting and Refinement | |||||
---|---|---|---|---|---|
Id | 1 (3J8A, 4PD3, 3J8A, 3J8A, 3J8A, 3J8A) | 2 (4A7F, 4A7F) | |||
Refinement Space | |||||
Refinement Protocol | BACKBONE TRACE | RIGID BODY FIT | |||
Refinement Target | |||||
Overall B Value | 180 | ||||
Fitting Procedure | |||||
Details | tropomyosin fitting |
Data Acquisition | |||||||||
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Detector Type | FEI FALCON II (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 16 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | |
Maximum Defocus (nm) | |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | |
Nominal Magnification | 59000 |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details | Cs corrected microscope |
EM Software | ||
---|---|---|
Task | Software Package | Version |
PARTICLE SELECTION | SPARX | |
IMAGE ACQUISITION | EPU | |
CTF CORRECTION | CTFFIND | 4 |
CTF CORRECTION | RELION | 1.3 |
MODEL FITTING | MODELLER | |
MODEL FITTING | UCSF Chimera | |
MODEL FITTING | iMODFIT | |
MODEL REFINEMENT | Coot | |
MODEL REFINEMENT | REFMAC | |
INITIAL EULER ASSIGNMENT | RELION | 1.3 |
FINAL EULER ASSIGNMENT | RELION | 1.3 |
CLASSIFICATION | RELION | 1.3 |
CLASSIFICATION | SPARX | |
RECONSTRUCTION | RELION | 1.3 |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PHASE FLIPPING AND AMPLITUDE CORRECTION | 138000 |