Evidence map›Paper›PMID 33522422›Full record

ReviewRNA biology2021

LARP1 and LARP4: up close with PABP for mRNA 3' poly(A) protection and stabilization.

Sandy Mattijssen, Guennadi Kozlov, Bruno D Fonseca, Kalle Gehring, Richard J Maraia

Open access · bronzeAbstract readReview
In one paragraph

Review in RNA biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Sandy MattijssenDivision of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, United States.ORCID 0000-0002-4285-7438
Guennadi KozlovDepartment of Biochemistry & Centre for Structural Biology, McGill University, Montreal, Canada.ORCID 0000-0002-7742-6558
Bruno D FonsecaPrimerGen Ltd, Viseu, Portugal.
Kalle GehringDepartment of Biochemistry & Centre for Structural Biology, McGill University, Montreal, Canada.ORCID 0000-0001-6500-1184
Richard J MaraiaDivision of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, United States.ORCID 0000-0002-5209-0066
McGill University · CANational Institutes of Health · USPublic Risk Management Association · US

Funding

Molecular Regulation Of RNA MetabolismZIAHD000412 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI MARAIA, RICHARD J · 2009 to 2025
$31.6M
Intramural NIH HHS ZIA HD000412Intramural NIH HHS ZIA HD000412-31
6 · The paper itself

Abstract

La-related proteins (LARPs) share a La motif (LaM) followed by an RNA recognition motif (RRM). Together these are termed the La-module that, in the prototypical nuclear La protein and LARP7, mediates binding to the UUU-3'OH termination motif of nascent RNA polymerase III transcripts. We briefly review La and LARP7 activities for RNA 3' end binding and protection from exonucleases before moving to the more recently uncovered poly(A)-related activities of LARP1 and LARP4. Two features shared by LARP1 and LARP4 are direct binding to poly(A) and to the cytoplasmic poly(A)-binding protein (PABP, also known as PABPC1). LARP1, LARP4 and other proteins involved in mRNA translation, deadenylation, and decay, contain PAM2 motifs with variable affinities for the MLLE domain of PABP. We discuss a model in which these PABP-interacting activities contribute to poly(A) pruning of active mRNPs. Evidence that the SARS-CoV-2 RNA virus targets PABP, LARP1, LARP 4 and LARP 4B to control mRNP activity is also briefly reviewed. Recent data suggests that LARP4 opposes deadenylation by stabilizing PABP on mRNA poly(A) tails. Other data suggest that LARP1 can protect mRNA from deadenylation. This is dependent on a PAM2 motif with unique characteristics present in its La-module. Thus, while nuclear La and LARP7 stabilize small RNAs with 3' oligo(U) from decay, LARP1 and LARP4 bind and protect mRNA 3' poly(A) tails from deadenylases through close contact with PABP.

Indexed as

Poly AAmino Acid MotifsAutoantigensHumansPhylogenyPoly(A)-Binding ProteinsProtein BindingProtein BiosynthesisProtein DomainsRibonucleoproteinsRNA, MessengerRNA StabilityRNA, ViralSARS-CoV-2SS-B AntigenAutoantigensLarp7 protein, humanmessenger ribonucleoproteinPoly APoly(A)-Binding ProteinsRibonucleoproteinsRNA, MessengerRNA, ViralSS-B Antigenccr4Deadenylationmllepabppam2poly(A) phasing

Identifiers

PMID33522422
PMCPMC7928012
OpenAlexW3128564782

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.