9B3F | pdb_00009b3f

Cryo-EM structure of yeast (Nap1)2-H2A-H2B-Kap114


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 8F1E 
experimental modelPDB 9B23 
in silico modelAlphaFoldAF-P53067-F1 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d4.78
f_angle_d0.473
f_chiral_restr0.035
f_plane_restr0.003
f_bond_d0.002
Sample
Crosslinked mixture of Kap114 with Nap1 and H2A-H2B
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles113011
Reported Resolution (Å)3.54
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsComposite map was generated by first multiplying the consensus volume with the particle subtraction mask using vop multiply, and composited with the l ...Composite map was generated by first multiplying the consensus volume with the particle subtraction mask using vop multiply, and composited with the locally refined map covering the Nap1 and histone area by vop maximum in ChimeraX.
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (8F1E, 9B23)
Refinement Space
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)59
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)900
Maximum Defocus (nm)2400
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification105000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONcryoSPARC
MODEL FITTINGUCSF ChimeraX
MODEL FITTINGCoot
INITIAL EULER ASSIGNMENTcryoSPARC
FINAL EULER ASSIGNMENTcryoSPARC
CLASSIFICATIONcryoSPARC
RECONSTRUCTIONcryoSPARC
MODEL REFINEMENTPHENIX1.19.1_4122:
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION4314112Blob picking on 100 micrographs and then further template picking.