9SKR | pdb_00009skr

Cryo-EM structure of H. neapolitanus CsoSCA in oxidizing conditions, hexamer


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFoldAF-O85042-F1 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
s_dihedral_angle_6_deg14.7678
s_dihedral_angle_3_deg11.6349
s_dihedral_angle_1_deg6.8799
s_dihedral_angle_2_deg3.9211
s_angle_nonh_deg1.8748
s_symmetry_hbond_nbd0.6744
s_nbtor0.2309
s_nbd0.2241
s_hbond_nbd0.2204
s_symmetry_nbd0.2161
RMS Deviations
KeyRefinement Restraint Deviation
s_dihedral_angle_6_deg14.7678
s_dihedral_angle_3_deg11.6349
s_dihedral_angle_1_deg6.8799
s_dihedral_angle_2_deg3.9211
s_angle_nonh_deg1.8748
s_symmetry_hbond_nbd0.6744
s_nbtor0.2309
s_nbd0.2241
s_hbond_nbd0.2204
s_symmetry_nbd0.2161
s_metal_ion0.0923
s_chiral_restr0.0857
s_bond_nonh_d0.0103
s_planes0.0093
Sample
HnCsoSCA
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details4C, 100% relative humidity, delay time 0s, blot time 3s, blot force 0
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles486613
Reported Resolution (Å)2.13
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsGS-FSC resolutution calculated with the auto-tightened mask in CryoSPARC.
Refinement Type
Symmetry TypePOINT
Point SymmetryD3
Map-Model Fitting and Refinement
Id1
Refinement SpaceRECIPROCAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)64.757
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)600
Maximum Defocus (nm)1800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification130000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONTopaz0.2.5
IMAGE ACQUISITIONEPU3.6.0
CTF CORRECTIONcryoSPARC4.7
MODEL FITTINGUCSF ChimeraX1.9
MODEL FITTINGISOLDE1.9
INITIAL EULER ASSIGNMENTcryoSPARC4.7
FINAL EULER ASSIGNMENTcryoSPARC4.7
CLASSIFICATIONcryoSPARC4.7
RECONSTRUCTIONcryoSPARC4.7
MODEL REFINEMENTServalcat0.4.99
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION917605Particles were picked with topaz, trained with a set of about 1000 particles picked manually from micrographs denoised by CryoSPARC. Topaz was trained and applied on raw micrographs.