8QOI

Structure of the human 80S ribosome at 1.9 A resolution - the molecular role of chemical modifications and ions in RNA


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6QZP 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d15.2762
f_angle_d0.9082
f_chiral_restr0.0519
f_plane_restr0.0065
f_bond_d0.0058
Sample
Human 80S ribosome
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles382016
Reported Resolution (Å)1.9
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (6QZP)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value38.3
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON IV (4k x 4k)GATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)11
Imaging Experiment12
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOSJEOL CRYO ARM 300
Minimum Defocus (nm)5001000
Maximum Defocus (nm)11002000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELDBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUNFIELD EMISSION GUN
Acceleration Voltage (kV)300300
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.21
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION