9J9E | pdb_00009j9e

Cryo-EM structure of the type VII CRISPR-Cas14 effector complex


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
s_dihedral_angle_6_deg12.5347
s_dihedral_angle_3_deg10.5167
s_dihedral_angle_1_deg7.2199
s_angle_nonh_deg1.7112
s_dihedral_angle_2_deg1.2307
s_nbtor0.1848
s_nbd0.1474
s_chiral_restr0.1278
s_hbond_nbd0.109
s_bond_nonh_d0.0097
RMS Deviations
KeyRefinement Restraint Deviation
s_dihedral_angle_6_deg12.5347
s_dihedral_angle_3_deg10.5167
s_dihedral_angle_1_deg7.2199
s_angle_nonh_deg1.7112
s_dihedral_angle_2_deg1.2307
s_nbtor0.1848
s_nbd0.1474
s_chiral_restr0.1278
s_hbond_nbd0.109
s_bond_nonh_d0.0097
s_planes0.0043
Sample
The type VII CRISPR-Cas14 effector complex
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles74619
Reported Resolution (Å)2.97
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)50
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC
CTF CORRECTIONcryoSPARC
MODEL FITTINGCoot
MODEL REFINEMENTServalcat
INITIAL EULER ASSIGNMENTcryoSPARC
FINAL EULER ASSIGNMENTcryoSPARC
CLASSIFICATIONcryoSPARC
RECONSTRUCTIONcryoSPARC
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION