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 31XJ | pdb_000031xj

Disulfide linked complex of T. ramosa IgA peptidase (IgAse2-4) with human IgA2 Fab' in precatalytic conformation


ELECTRON MICROSCOPY
Sample
Disulfide linked complex of T. ramosa IgA peptidase (IgAse) with human IgA2 Fab
Sample Components
Monomeric IgA peptidase (S328-T806) with mutations E540A C414S D434C C476S C591S.
IgA2 Heavy Chain alfa domain 1 and 2 including the hinge region (Q1-P226).
IgA2 Lambda Light Chain domains 1 and 2 (Q1-T214) with mutations S127C C216S.
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles105795
Reported Resolution (Å)2.9
Resolution MethodOTHER
Other DetailsdFSC_model 0.5
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeTFS FALCON 4i (4k x 4k)
Electron Dose (electrons/Å**2)45
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)2200
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeOTHER
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONTopaz
MODEL REFINEMENTPHENIX2.1_6048
CTF CORRECTIONcryoSPARC4.7.1
RECONSTRUCTIONScipion3
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION