English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Structure of the actively translating plant 80S ribosome at 2.2 Å resolution

MPS-Authors
/persons/resource/persons73855

Bürger,  Jörg       
Microscopy and Cryo-Electron Microscopy (Head: Thorsten Mielke), Scientific Service (Head: Christoph Krukenkamp), Max Planck Institute for Molecular Genetics, Max Planck Society;

/persons/resource/persons50431

Mielke,  Thorsten       
Microscopy and Cryo-Electron Microscopy (Head: Thorsten Mielke), Scientific Service (Head: Christoph Krukenkamp), Max Planck Institute for Molecular Genetics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

NaturePlants_Smirnova et al_2023.pdf
(Publisher version), 14MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Smirnova, J., Loerke, J., Kleinau, G., Schmidt, A., Bürger, J., Meyer, E. H., et al. (2023). Structure of the actively translating plant 80S ribosome at 2.2 Å resolution. Nature Plants. doi:10.1038/s41477-023-01407-y.


Cite as: https://hdl.handle.net/21.11116/0000-000D-2D25-8
Abstract
In plant cells, translation occurs in three compartments: the cytosol, the plastids and the mitochondria. While the structures of the (prokaryotic-type) ribosomes in plastids and mitochondria are well characterized, high-resolution structures of the eukaryotic 80S ribosomes in the cytosol have been lacking. Here the structure of translating tobacco (Nicotiana tabacum) 80S ribosomes was solved by cryo-electron microscopy with a global resolution of 2.2 Å. The ribosome structure includes two tRNAs, decoded mRNA and the nascent peptide chain, thus providing insights into the molecular underpinnings of the cytosolic translation process in plants. The map displays conserved and plant-specific rRNA modifications and the positions of numerous ionic cofactors, and it uncovers the role of monovalent ions in the decoding centre. The model of the plant 80S ribosome enables broad phylogenetic comparisons that reveal commonalities and differences in the ribosomes of plants and those of other eukaryotes, thus putting our knowledge about eukaryotic translation on a firmer footing.