9MF4 | pdb_00009mf4

De novo designed minibinder complexed with Clostridioides difficile Toxin B


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFoldP18177 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d12.898
f_angle_d0.8218
f_chiral_restr0.0576
f_bond_d0.0114
f_plane_restr0.0074
Sample
De novo designed minibinder complexed with Clostridioides difficile Toxin B
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentLEICA EM GP
Cryogen NameETHANE
Sample Vitrification Details30s preblot incubation on grid. 2-3s blot time.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles179414
Reported Resolution (Å)3.02
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement ProtocolOTHER
Refinement Target
Overall B Value113
Fitting Procedure
DetailsPredicted models were docked into the map using ChimeraX. The model was then manually with ISOLDE and refined with phenix.real_space_refine.
Data Acquisition
Detector TypeFEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)42
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)1000
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification75000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU3.7
MODEL FITTINGISOLDE
INITIAL EULER ASSIGNMENTcryoSPARC4
FINAL EULER ASSIGNMENTcryoSPARC4
CLASSIFICATIONcryoSPARC4
RECONSTRUCTIONcryoSPARC4
MODEL REFINEMENTPHENIX1.20.1-4487
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION