9ONK | pdb_00009onk

L-cluster inward bound holo-NifEN expressed in E. coli


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFoldAF-C1DH03-F1-model_v4 
in silico modelAlphaFoldAF-C1DH04-F1-model_v4 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d10.329
f_angle_d0.532
f_chiral_restr0.038
f_plane_restr0.004
f_bond_d0.002
Sample
NifEN
Sample Components
NifE
NifN
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsPlunged inside an anaerobic chamber
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles40670
Reported Resolution (Å)3.62
Resolution MethodFSC 0.143 CUT-OFF
Other Details
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)60
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 CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification165000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC4.2.1
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONcryoSPARC4.2.1
MODEL FITTINGUCSF ChimeraX
INITIAL EULER ASSIGNMENTcryoSPARC4.2.1
FINAL EULER ASSIGNMENTcryoSPARC4.2.1
RECONSTRUCTIONcryoSPARC4.2.1
MODEL REFINEMENTPHENIX1.21.2_5419:
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION