[HTML][HTML] TOP mRNPs: molecular mechanisms and principles of regulation

E Cockman, P Anderson, P Ivanov - Biomolecules, 2020 - mdpi.com
The cellular response to changes in the surrounding environment and to stress requires the
coregulation of gene networks aiming to conserve energy and resources. This is often …

Controversies around the function of LARP1

AJ Berman, CC Thoreen, Z Dedeic, J Chettle… - RNA biology, 2021 - Taylor & Francis
The RNA-binding protein LARP1 has generated interest in recent years for its role in the
mTOR signalling cascade and its regulation of terminal oligopyrimidine (TOP) mRNA …

Short poly (A) tails are protected from deadenylation by the LARP1–PABP complex

J Park, M Kim, H Yi, K Baeg, Y Choi, Y Lee… - Nature structural & …, 2023 - nature.com
Deadenylation generally constitutes the first and pivotal step in eukaryotic messenger RNA
decay. Despite its importance in posttranscriptional regulations, the kinetics of …

mTORC1 promotes TOP mRNA translation through site-specific phosphorylation of LARP1

JJ Jia, RM Lahr, MT Solgaard, BJ Moraes… - Nucleic acids …, 2021 - academic.oup.com
LARP1 is a key repressor of TOP mRNA translation. It binds the m7Gppp cap moiety and the
adjacent 5′ TOP motif of TOP mRNAs, thus impeding the assembly of the eIF4F complex …

[HTML][HTML] Parallel global profiling of plant TOR dynamics reveals a conserved role for LARP1 in translation

MR Scarpin, S Leiboff, JO Brunkard - Elife, 2020 - elifesciences.org
Target of rapamycin (TOR) is a protein kinase that coordinates eukaryotic metabolism. In
mammals, TOR specifically promotes translation of ribosomal protein (RP) mRNAs when …

[HTML][HTML] mTOR-and LARP1-dependent regulation of TOP mRNA poly (A) tail and ribosome loading

K Ogami, Y Oishi, K Sakamoto, M Okumura… - Cell reports, 2022 - cell.com
Translation of 5′ terminal oligopyrimidine (TOP) mRNAs encoding the protein synthesis
machinery is strictly regulated by an amino-acid-sensing mTOR pathway. However, its …

Upregulation of RNA cap methyltransferase RNMT drives ribosome biogenesis during T cell activation

A Galloway, A Kaskar, D Ditsova, A Atrih… - Nucleic acids …, 2021 - academic.oup.com
The m7G cap is ubiquitous on RNAPII-transcribed RNA and has fundamental roles in
eukaryotic gene expression, however its in vivo role in mammals has remained unknown …

[HTML][HTML] Subcellular mRNA localization regulates ribosome biogenesis in migrating cells

M Dermit, M Dodel, FCY Lee, MS Azman… - Developmental cell, 2020 - cell.com
Translation of ribosomal protein-coding mRNAs (RP-mRNAs) constitutes a key step in
ribosome biogenesis, but the mechanisms that modulate RP-mRNA translation in …

Structural basis of 3′-end poly (A) RNA recognition by LARP1

G Kozlov, S Mattijssen, J Jiang, S Nyandwi… - Nucleic Acids …, 2022 - academic.oup.com
La-related proteins (LARPs) comprise a family of RNA-binding proteins involved in a wide
range of posttranscriptional regulatory activities. LARPs share a unique tandem of two RNA …

RNA localization mechanisms transcend cell morphology

R Goering, A Arora, MC Pockalny, JM Taliaferro - Elife, 2023 - elifesciences.org
RNA molecules are localized to specific subcellular regions through interactions between
RNA regulatory elements and RNA binding proteins (RBPs). Generally, our knowledge of …