The tmRNA system for translational surveillance and ribosome rescue

SD Moore, RT Sauer - Annu. Rev. Biochem., 2007‏ - annualreviews.org
The tmRNA system performs translational surveillance and ribosome rescue in all
eubacteria and some eukaryotic organelles. This system intervenes when ribosomes read to …

Biology of trans-Translation

KC Keiler - Annu. Rev. Microbiol., 2008‏ - annualreviews.org
The trans-translation mechanism is a key component of multiple quality control pathways in
bacteria that ensure proteins are synthesized with high fidelity in spite of challenges such as …

The weird and wonderful world of bacterial ribosome regulation

DN Wilson, KH Nierhaus - Critical reviews in biochemistry and …, 2007‏ - Taylor & Francis
In every organism, translation of the genetic information into functional proteins is performed
on the ribosome. In Escherichia coli up to 40% of the cell's total energy turnover is …

The tmRNA ribosome-rescue system

BD Janssen, CS Hayes - Advances in protein chemistry and structural …, 2012‏ - Elsevier
The bacterial tmRNA quality control system monitors protein synthesis and recycles stalled
translation complexes in a process termed “ribosome rescue.” During rescue, tmRNA acts …

Structures of tmRNA and SmpB as they transit through the ribosome

C Guyomar, G D'urso, S Chat, E Giudice… - Nature …, 2021‏ - nature.com
In bacteria, trans-translation is the main rescue system, freeing ribosomes stalled on
defective messenger RNAs. This mechanism is driven by small protein B (SmpB) and …

Visualizing tmRNA entry into a stalled ribosome

M Valle, R Gillet, S Kaur, A Henne, V Ramakrishnan… - Science, 2003‏ - science.org
Bacterial ribosomes stalled on defective messenger RNAs (mRNAs) are rescued by tmRNA,
an∼ 300-nucleotide-long molecule that functions as both transfer RNA (tRNA) and mRNA …

tmRNA-mediated trans-translation as the major ribosome rescue system in a bacterial cell

H Himeno, D Kurita, A Muto - Frontiers in genetics, 2014‏ - frontiersin.org
Transfer messenger RNA (tmRNA; also known as 10Sa RNA or SsrA RNA) is a small RNA
molecule that is conserved among bacteria. It has structural and functional similarities to …

Structural basis for functional mimicry of long-variable-arm tRNA by transfer-messenger RNA

Y Bessho, R Shibata, S Sekine, K Murayama… - Proceedings of the …, 2007‏ - pnas.org
tmRNA and small protein B (SmpB) are essential trans-translation system components. In
the present study, we determined the crystal structure of SmpB in complex with the entire …

An overview of the bacterial SsrA system modulating intracellular protein levels and activities

J Fritze, M Zhang, Q Luo, X Lu - Applied microbiology and biotechnology, 2020‏ - Springer
In bacteria, the truncated forms of mRNAs, which usually lack a stop codon, are occasionally
generated by premature termination of gene transcription and/or endo-or exonucleolytic …

Trans-Translation:  The tmRNA-Mediated Surveillance Mechanism for Ribosome Rescue, Directed Protein Degradation, and Nonstop mRNA Decay

D Dulebohn, J Choy, T Sundermeier, N Okan… - Biochemistry, 2007‏ - ACS Publications
The accurate flow of genetic information from DNA to RNA to protein is essential for all living
organisms. An astonishing array of quality-assurance mechanisms have evolved to ensure …