Translation termination and ribosome recycling in eukaryotes

CUT Hellen - Cold Spring Harbor perspectives in biology, 2018 - cshperspectives.cshlp.org
Termination of mRNA translation occurs when a stop codon enters the A site of the
ribosome, and in eukaryotes is mediated by release factors eRF1 and eRF3, which form a …

eIF5A functions globally in translation elongation and termination

AP Schuller, CCC Wu, TE Dever, AR Buskirk, R Green - Molecular cell, 2017 - cell.com
The eukaryotic translation factor eIF5A, originally identified as an initiation factor, was later
shown to promote translation elongation of iterated proline sequences. Using a combination …

Regulation of translation by one-carbon metabolism in bacteria and eukaryotic organelles

S Shetty, U Varshney - Journal of Biological Chemistry, 2021 - ASBMB
Protein synthesis is an energetically costly cellular activity. It is therefore important that the
process of mRNA translation remains in excellent synchrony with cellular metabolism and its …

Human mitochondria require mtRF1 for translation termination at non-canonical stop codons

A Krüger, C Remes, DI Shiriaev, Y Liu, H Spåhr… - Nature …, 2023 - nature.com
The mitochondrial translation machinery highly diverged from its bacterial counterpart. This
includes deviation from the universal genetic code, with AGA and AGG codons lacking …

N1-methylpseudouridine found within COVID-19 mRNA vaccines produces faithful protein products

KQ Kim, BD Burgute, SC Tzeng, C Jing, C Jungers… - Cell Reports, 2022 - cell.com
Synthetic mRNA technology is a promising avenue for treating and preventing disease. Key
to the technology is the incorporation of modified nucleotides such as N1 …

An antimicrobial peptide that inhibits translation by trapping release factors on the ribosome

T Florin, C Maracci, M Graf, P Karki… - Nature structural & …, 2017 - nature.com
Many antibiotics stop bacterial growth by inhibiting different steps of protein synthesis.
However, no specific inhibitors of translation termination are known. Proline-rich …

The structural basis for release factor activation during translation termination revealed by time-resolved cryogenic electron microscopy

Z Fu, G Indrisiunaite, S Kaledhonkar, B Shah, M Sun… - Biophysical …, 2019 - cell.com
Upon encountering a stop codon in the aminoacyl site (A site) of the mRNA translating
ribosome, the ribosome recruits a class-1 release factor (RF), which induces hydrolysis of …

Transient disome complex formation in native polysomes during ongoing protein synthesis captured by cryo-EM

T Flügel, M Schacherl, A Unbehaun, B Schroeer… - Nature …, 2024 - nature.com
Structural studies of translating ribosomes traditionally rely on in vitro assembly and stalling
of ribosomes in defined states. To comprehensively visualize bacterial translation, we …

Structural basis for the tryptophan sensitivity of TnaC-mediated ribosome stalling

AX van der Stel, ER Gordon, A Sengupta… - Nature …, 2021 - nature.com
Abstract Free L-tryptophan (L-Trp) stalls ribosomes engaged in the synthesis of TnaC, a
leader peptide controlling the expression of the Escherichia coli tryptophanase operon …

Ornithine capture by a translating ribosome controls bacterial polyamine synthesis

A Herrero del Valle, B Seip, I Cervera-Marzal… - Nature …, 2020 - nature.com
Polyamines are essential metabolites that play an important role in cell growth, stress
adaptation and microbial virulence,–. To survive and multiply within a human host …