Neuronal ribosomes exhibit dynamic and context-dependent exchange of ribosomal proteins

CM Fusco, K Desch, AR Dörrbaum, M Wang… - Nature …, 2021 - nature.com
Owing to their morphological complexity and dense network connections, neurons modify
their proteomes locally, using mRNAs and ribosomes present in the neuropil (tissue …

Dynamic competition between SARS-CoV-2 NSP1 and mRNA on the human ribosome inhibits translation initiation

CP Lapointe, R Grosely, AG Johnson… - Proceedings of the …, 2021 - National Acad Sciences
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a beta-CoV that recently
emerged as a human pathogen and is the causative agent of the COVID-19 pandemic. A …

eIF5B and eIF1A reorient initiator tRNA to allow ribosomal subunit joining

CP Lapointe, R Grosely, M Sokabe, C Alvarado… - Nature, 2022 - nature.com
Translation initiation defines the identity and quantity of a synthesized protein. The process
is dysregulated in many human diseases,. A key commitment step is when the ribosomal …

Ribosome specialization in cancer: a spotlight on ribosomal proteins

S Ramalho, A Dopler, WJ Faller - NAR cancer, 2024 - academic.oup.com
In the past few decades, our view of ribosomes has changed substantially. Rather than
passive machines without significant variability, it is now acknowledged that they are …

Universal features of Nsp1-mediated translational shutdown by coronaviruses

K Schubert, ED Karousis, I Ban, CP Lapointe… - Molecular cell, 2023 - cell.com
Summary Nonstructural protein 1 (Nsp1) produced by coronaviruses inhibits host protein
synthesis. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Nsp1 C …

Insights into the regulation of mRNA translation by scaffolding proteins

MR Smith, G Costa - Biochemical Society Transactions, 2024 - portlandpress.com
Regionalisation of molecular mechanisms allows cells to fine-tune their responses to
dynamic environments. In this context, scaffolds are well-known mediators of localised …

A non‐canonical scaffold‐type E3 ligase complex mediates protein UFMylation

JJ Peter, HM Magnussen, PA DaRosa, D Millrine… - The EMBO …, 2022 - embopress.org
Protein UFMylation, ie, post‐translational modification with ubiquitin‐fold modifier 1 (UFM1),
is essential for cellular and endoplasmic reticulum homeostasis. Despite its biological …

How to build a ribosome from RNA fragments in Chlamydomonas mitochondria

F Waltz, T Salinas-Giegé, R Englmeier… - Nature …, 2021 - nature.com
Mitochondria are the powerhouse of eukaryotic cells. They possess their own gene
expression machineries where highly divergent and specialized ribosomes, named …

The UFM1 E3 ligase recognizes and releases 60S ribosomes from ER translocons

L Makhlouf, JJ Peter, HM Magnussen, R Thakur… - Nature, 2024 - nature.com
Stalled ribosomes at the endoplasmic reticulum (ER) are covalently modified with the
ubiquitin-like protein UFM1 on the 60S ribosomal subunit protein RPL26 (also known as …

Mechanisms that ensure speed and fidelity in eukaryotic translation termination

MR Lawson, LN Lessen, J Wang, A Prabhakar… - Science, 2021 - science.org
Translation termination, which liberates a nascent polypeptide from the ribosome specifically
at stop codons, must occur accurately and rapidly. We established single-molecule …