3J0L

Core of mammalian 80S pre-ribosome in complex with tRNAs fitted to a 9.8A cryo-EM map: classic PRE state 1


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2WDK 
experimental modelPDB 2XZM 
experimental modelPDB 3O58 
Sample
CORE OF MAMMALIAN 80S PRE-RIBOSOME IN COMPLEX WITH TRNAS
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK I
Cryogen NameETHANE
Sample Vitrification DetailsEthane / Vitrobot (FEI) flash-frozen in liquid ethane
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles30448
Reported Resolution (Å)9.8
Resolution Method
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (2WDK, 2XZM, 3O58)23
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
DetailsMETHOD--rigid body REFINEMENT PROTOCOL--rigid body DETAILS--40SDETAILS--60SDETAILS--tRNA
Data Acquisition
Detector TypeKODAK SO-163 FILM
Electron Dose (electrons/Å**2)20
Imaging Experiment1
Date of Experiment2006-10-17
Temperature (Kelvin)77
Microscope ModelFEI POLARA 300
Minimum Defocus (nm)2000
Maximum Defocus (nm)4000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification39000
Calibrated Magnification65520
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGUCSF Chimera
RECONSTRUCTIONSPIDER
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
CTF CORRECTION OF EACH DEFOCUS GROUP VOLUME PRIOR TO BACK PROJECTION