8FGX
Cryo-EM structure of the STAR-0215 Fab in complex with active human plasma kallikrein
ELECTRON MICROSCOPY
Refinement
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 9.7351 |
f_angle_d | 0.4176 |
f_chiral_restr | 0.0437 |
f_plane_restr | 0.0028 |
f_bond_d | 0.0025 |
Sample |
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Complex of STAR-0215 Fab with active plasma kallikrein |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details | Grids were prepared using a ThermoFisher Vitrobot MkIV with the chamber held at 18C and 100% relative humidity. 3.5 uL of the sample was applied to an ... |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 299175 |
Reported Resolution (Å) | 2.62 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C1 |
Map-Model Fitting and Refinement | |||||
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Id | 1 | ||||
Refinement Space | REAL | ||||
Refinement Protocol | FLEXIBLE FIT | ||||
Refinement Target | Cross-correlation | ||||
Overall B Value | |||||
Fitting Procedure | |||||
Details |
Data Acquisition | |||||||||
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Detector Type | GATAN K3 BIOQUANTUM (6k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 70 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | 700 |
Maximum Defocus (nm) | 2100 |
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 | 105000 |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
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Task | Software Package | Version |
PARTICLE SELECTION | Topaz | 0.2.5 |
IMAGE ACQUISITION | EPU | 3.0 |
CTF CORRECTION | CTFFIND | 4.1.14 |
CTF CORRECTION | RELION | 4.0 |
MODEL FITTING | PHENIX | 1.20.1 |
MODEL FITTING | UCSF Chimera | 1.15 |
INITIAL EULER ASSIGNMENT | RELION | 4.0 |
FINAL EULER ASSIGNMENT | RELION | 4.0 |
CLASSIFICATION | RELION | 4.0 |
RECONSTRUCTION | RELION | 4.0 |
MODEL REFINEMENT | PHENIX | 1.20.1 |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PHASE FLIPPING AND AMPLITUDE CORRECTION | 718169 |