1MVR | pdb_00001mvr

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

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1GIX
experimental model	PDB	1GIY

Sample
70S ribosome

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	HOMEMADE PLUNGER
Cryogen Name	ETHANE
Sample Vitrification Details	Rapid-freezing in liquid ethane

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	18199
Reported Resolution (Å)	12.8
Resolution Method
Other Details	SPIDER package
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1

Map-Model Fitting and Refinement
Id	1 (1GIX, 1GIY)
Refinement Space	REAL
Refinement Protocol	OTHER
Refinement Target
Overall B Value
Fitting Procedure
Details	METHOD--Manual

Data Acquisition
Detector Type	KODAK SO-163 FILM
Electron Dose (electrons/Å**2)	20

Imaging Experiment	1
Date of Experiment	2001-11-08
Temperature (Kelvin)	93
Microscope Model	FEI TECNAI F20
Minimum Defocus (nm)	2020
Maximum Defocus (nm)	4500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification	50000
Calibrated Magnification	49696
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	200
Imaging Details

EM Software
Task	Software Package	Version
MODEL FITTING	O
RECONSTRUCTION	SPIDER

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
	Wiener filtering of 3D-maps