1MVR

Decoding Center & Peptidyl transferase center from the X-ray structure of the Thermus thermophilus 70S ribosome, aligned to the low resolution Cryo-EM map of E.coli 70S Ribosome


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1GIX 
experimental modelPDB 1GIY 
Sample
70S ribosome
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentHOMEMADE PLUNGER
Cryogen NameETHANE
Sample Vitrification DetailsRapid-freezing in liquid ethane
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles18199
Reported Resolution (Å)12.8
Resolution Method
Other DetailsSPIDER package
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (1GIX, 1GIY)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
DetailsMETHOD--Manual
Data Acquisition
Detector TypeKODAK SO-163 FILM
Electron Dose (electrons/Å**2)20
Imaging Experiment1
Date of Experiment2001-11-08
Temperature (Kelvin)93
Microscope ModelFEI TECNAI F20
Minimum Defocus (nm)2020
Maximum Defocus (nm)4500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification50000
Calibrated Magnification49696
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGO
RECONSTRUCTIONSPIDER
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
Wiener filtering of 3D-maps