9B3I | pdb_00009b3i

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


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 8F1E 
experimental modelPDB 9B3F 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d8.358
f_angle_d0.754
f_chiral_restr0.048
f_plane_restr0.007
f_bond_d0.006
Sample
Complex of Kap114 bound to Ran GTPase Gsp1, H2A-H2B and Nap1
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles133516
Reported Resolution (Å)2.88
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsComposite map was generated by first applying vop multiply to the particle subtraction mask and the consensus volume (covering Kap114 and RanGTP), the ...Composite map was generated by first applying vop multiply to the particle subtraction mask and the consensus volume (covering Kap114 and RanGTP), then composited with locally refined region for the Nap1 and Histone region by vop maximum in Chimera X.
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (8F1E, 9B3F)
Refinement Space
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)50
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)900
Maximum Defocus (nm)2200
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
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 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 CORRECTION1381753Blob picker then followed by Topaz picking.