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- EMDB-1726: Ribosome dynamics and tRNA movement as visualized by time-resolve... -

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Basic information

Entry
Database: EMDB / ID: 1726
TitleRibosome dynamics and tRNA movement as visualized by time-resolved electron cryomicroscopy
KeywordsRibosome / translation / translocation / tRNA
SampleE. coli 70S-fMetVal-tRNAVal post-translocation complex at 4 degrees C
SourceEscherichia coli / bacteria / エシェリキア・コリ, 大腸菌 /
Synthetic construct
Map dataAverage map of E. coli 70S-fMetVal-tRNAVal post-translocation complex prepared at 4 degrees C
Methodsingle particle reconstruction, at 11 Å resolution
AuthorsFischer N / Konevega AL / Wintermeyer W / Rodnina MV / Stark H
CitationNature, 2010, 466, 329-333

Nature, 2010, 466, 329-333 Yorodumi Papers
Ribosome dynamics and tRNA movement by time-resolved electron cryomicroscopy.
Niels Fischer / Andrey L Konevega / Wolfgang Wintermeyer / Marina V Rodnina / Holger Stark

DateDeposition: Apr 30, 2010 / Header (metadata) release: Jun 15, 2010 / Map release: May 6, 2011 / Last update: Oct 24, 2012

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 35
  • Imaged by UCSF CHIMERA
  • Download
  • Surface view colored by height
  • Surface level: 35
  • Imaged by UCSF CHIMERA
  • Download
3D viewer


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Supplemental images

Downloads & links

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Map

Fileemd_1726.map.gz (map file in CCP4 format, 27649 KB)
Projections & slices

Image control

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AxesZ (Sec.)Y (Row.)X (Col.)
192 pix
1.87 Å/pix.
= 359.04 Å
192 pix
1.87 Å/pix.
= 359.04 Å
192 pix
1.87 Å/pix.
= 359.04 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider package.

Voxel sizeX=Y=Z: 1.87 Å
Density
Contour Level:35 (by author), 35 (movie #1):
Minimum - Maximum-117.661 - 211.522
Average (Standard dev.)-0.507737 (21.8951)
Details

EMDB XML:

Space Group Number1
Map Geometry
Axis orderXYZ
Dimensions192192192
Origin000
Limit191191191
Spacing192192192
CellA=B=C: 359.04 Å
α=β=γ: 90 deg.

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.871.871.87
M x/y/z192192192
origin x/y/z0.0000.0000.000
length x/y/z359.040359.040359.040
α/β/γ90.00090.00090.000
start NX/NY/NZ-64-64-64
NX/NY/NZ128128128
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS192192192
D min/max/mean-117.661211.522-0.508

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Supplemental data

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Sample components

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Entire E. coli 70S-fMetVal-tRNAVal post-translocation complex at 4 degrees C

EntireName: E. coli 70S-fMetVal-tRNAVal post-translocation complex at 4 degrees C
Number of components: 3
MassTheoretical: 2.5 MDa

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Component #1: ribosome-prokaryote, Ribosome

Ribosome-prokaryoteName: Ribosome / a.k.a: E. coli 70S / Prokaryote: ALL / Recombinant expression: No
MassTheoretical: 2.5 MDa
SourceSpecies: Escherichia coli / bacteria / エシェリキア・コリ, 大腸菌 /

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Component #2: nucleic-acid, fMetVal-tRNAVal

Nucleic-acidName: fMetVal-tRNAVal / a.k.a: peptidyl tRNA / Class: T-RNA / Structure: DOUBLE HELIX / Synthetic: No
MassTheoretical: 25 kDa
SourceSpecies: Escherichia coli / bacteria / エシェリキア・コリ, 大腸菌 /

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Component #3: nucleic-acid, m022 mRNA

Nucleic-acidName: m022 mRNA / a.k.a: mRNA / Class: RNA / Details: coding sequence AUGGUU / Structure: SINGLE STRANDED / Synthetic: Yes
SourceSpecies: Synthetic construct

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Experimental details

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Sample preparation

Specimen stateparticle
Sample solutionBuffer solution: 50 mM Tris-HCl, 70 mM NH4Cl, 30 mM KCl, 7 mM MgCl2, 0.6 mM spermine, 0.4 mM spermidine
pH: 7.5
VitrificationInstrument: HOMEMADE PLUNGER / Cryogen name: ETHANE / Temperature: 77 K / Humidity: 40 % / Method: Manual blotting for about 2 seconds
Details: Vitrification instrument: Custom-built CEVS. Dew-point temperature (temperature on the grid) adjusted to 4 degrees C

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Electron microscopy imaging

ImagingMicroscope: FEI/PHILIPS CM200FEG
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 160 kV / Electron dose: 20 e/Å2 / Illumination mode: SPOT SCAN
LensMagnification: 161000 X (nominal), 162740 X (calibrated)
Astigmatism: Objective lens astigmatism was corrected at 200,000 times magnification
Cs: 2 mm / Imaging mode: BRIGHT FIELD / Defocus: 500 - 2000 nm
Specimen HolderHolder: Eucentric / Model: GATAN LIQUID NITROGEN / Temperature: 77 K
CameraDetector: GENERIC TVIPS (4k x 4k)

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Image processing

ProcessingMethod: single particle reconstruction / Number of projections: 16893 / Applied symmetry: C1 (asymmetric)
3D reconstructionAlgorithm: Projection matching / Software: IMAGIC, custom, Spider / CTF correction: Local / Resolution: 11 Å / Resolution method: FSC 0.5

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