8TXX

Cryo-EM structure of the human nucleosome core particle ubiquitylated at histone H2A K15 in complex with RNF168 (Class 3)


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d30.201
f_angle_d0.545
f_chiral_restr0.033
f_bond_d0.004
f_plane_restr0.003
Sample
Human nucleosome core particle ubiquitylated at histone H2A K15 in complex with RNF168 (Class 3)
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles35548
Reported Resolution (Å)3.7
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (7LYA, 1UBQ)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
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 ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)3000
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 SELECTIONcryoSPARC4.1.1
IMAGE ACQUISITIONEPU
CTF CORRECTIONcryoSPARC4.1.1
MODEL FITTINGPHENIX1.19.2-4158
MODEL REFINEMENTPHENIX1.19.2-4158
INITIAL EULER ASSIGNMENTcryoSPARC4.1.1
FINAL EULER ASSIGNMENTcryoSPARC4.1.1
CLASSIFICATIONRELION3.0.7
RECONSTRUCTIONRELION3.0.7
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION9619981