|Entry||Database: EMDB / ID: 3902|
|Title||Polyproline-stalled ribosome with a truncated mRNA in the A-site.|
|Sample||Polyproline-stalled ribosome bearing a truncated mRNA in the A-site|
|Source||Escherichia coli / bacteria / Wikipedia /|
|Map data||Polyproline-stalled ribosome with a truncated mRNA in the A-site, with P E-site tRNA|
|Method||single particle reconstruction, at 3.2 Å resolution|
|Authors||Huter P / Arenz S / Wilson D|
|Citation||Mol. Cell, 2017, 68, 515-527.e6|
Mol. Cell, 2017, 68, 515-527.e6 Yorodumi Papers
|Date||Deposition: Oct 5, 2017 / Header (metadata) release: Nov 22, 2017 / Map release: Nov 22, 2017 / Last update: Nov 22, 2017|
Downloads & links
|File||emd_3902.map.gz (map file in CCP4 format, 186625 KB)|
|Projections & slices|
Images are generated by Spider package.
|Voxel size||X=Y=Z: 1.084 Å|
CCP4 map header:
-Entire Polyproline-stalled ribosome bearing a truncated mRNA in the A-site
|Entire||Name: Polyproline-stalled ribosome bearing a truncated mRNA in the A-site|
Number of components: 1
|Mass||Theoretical: 3 MDa|
-Component #1: protein, Polyproline-stalled ribosome bearing a truncated mRNA in...
|Protein||Name: Polyproline-stalled ribosome bearing a truncated mRNA in the A-site|
Recombinant expression: No
|Mass||Theoretical: 3 MDa|
|Source||Species: Escherichia coli / bacteria / Wikipedia /|
|Sample solution||pH: 7.4|
|Vitrification||Cryogen name: ETHANE|
-Electron microscopy imaging
Model: Titan Krios / Image courtesy: FEI Company
|Imaging||Microscope: FEI TITAN KRIOS|
|Electron gun||Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Electron dose: 28 e/Å2 / Illumination mode: SPOT SCAN|
|Lens||Imaging mode: BRIGHT FIELD|
|Specimen Holder||Model: OTHER|
|Camera||Detector: FEI FALCON II (4k x 4k)|
|Processing||Method: single particle reconstruction / Number of projections: 50979|
|3D reconstruction||Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF|
-Oct 4, 2017. Three pioneers of this field were awarded Nobel Prize in Chemistry 2017
Three pioneers of this field were awarded Nobel Prize in Chemistry 2017
- Jacques Dubochet (University of Lausanne, Switzerland) is a pioneer of ice-embedding method of EM specimen (as known as cryo-EM), Most of 3DEM structures in EMDB and PDB are obtained using his method.
- Joachim Frank (Columbia University, New York, USA) is a pioneer of single particle reconstruction, which is the most used reconstruction method for 3DEM structures in EMDB and EM entries in PDB. And also, he is a develper of Spider, which is one of the most famous software in this field, and is used for some EM Navigor data (e.g. map projection/slice images).
- Richard Henderson (MRC Laboratory of Molecular Biology, Cambridge, UK) was determined the first biomolecule structure by EM. The first EM entry in PDB, PDB-1brd is determinedby him.
External links: The 2017 Nobel Prize in Chemistry - Press Release
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