Evidence map›Paper›PMID 31104843›Full record

ArticleCell2019

Molecular Basis for poly(A) RNP Architecture and Recognition by the Pan2-Pan3 Deadenylase.

Ingmar B Schäfer, Masami Yamashita, Jan Michael Schuller, Steffen Schüssler, Peter Reichelt, Mike Strauss, Elena Conti

Abstract read
In one paragraph

Article in Cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

66 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. The molecular determinants of PABPC-mediated deadenylation rate.bioRxiv : the preprint server for biology · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
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  18. Article
  19. RNA Decay Assay: 5-Ethynyl-Uridine Labeling and Chasing.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  20. Article

6 more citing papers are in PubMed but not listed here.

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

7 authors.

Ingmar B SchäferDepartment of Structural Cell Biology, MPI of Biochemistry, Munich, Germany. Electronic address: ischaefe@biochem.mpg.de.
Masami YamashitaDepartment of Structural Cell Biology, MPI of Biochemistry, Munich, Germany.
Jan Michael SchullerDepartment of Structural Cell Biology, MPI of Biochemistry, Munich, Germany.
Steffen SchüsslerDepartment of Structural Cell Biology, MPI of Biochemistry, Munich, Germany.
Peter ReicheltDepartment of Structural Cell Biology, MPI of Biochemistry, Munich, Germany.
Mike StrausscryoEM Facility, MPI of Biochemistry, Munich, Germany.
Elena ContiDepartment of Structural Cell Biology, MPI of Biochemistry, Munich, Germany. Electronic address: conti@biochem.mpg.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The stability of eukaryotic mRNAs is dependent on a ribonucleoprotein (RNP) complex of poly(A)-binding proteins (PABPC1/Pab1) organized on the poly(A) tail. This poly(A) RNP not only protects mRNAs from premature degradation but also stimulates the Pan2-Pan3 deadenylase complex to catalyze the first step of poly(A) tail shortening. We reconstituted this process in vitro using recombinant proteins and show that Pan2-Pan3 associates with and degrades poly(A) RNPs containing two or more Pab1 molecules. The cryo-EM structure of Pan2-Pan3 in complex with a poly(A) RNP composed of 90 adenosines and three Pab1 protomers shows how the oligomerization interfaces of Pab1 are recognized by conserved features of the deadenylase and thread the poly(A) RNA substrate into the nuclease active site. The structure reveals the basis for the periodic repeating architecture at the 3' end of cytoplasmic mRNAs. This illustrates mechanistically how RNA-bound Pab1 oligomers act as rulers for poly(A) tail length over the mRNAs' lifetime.

Indexed as

Cryoelectron MicroscopyExoribonucleasesPoly APoly(A)-Binding Protein IPoly(A)-Binding ProteinsRibonucleoproteinsRNARNA-Binding ProteinsRNA, MessengerRNA StabilitySaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsExoribonucleasesPAN3 protein, S cerevisiaePoly APoly(A)-Binding Protein IPoly(A)-Binding ProteinsRibonucleoproteinsRNARNA-Binding ProteinsRNA, MessengerSaccharomyces cerevisiae ProteinsCcr4-NotcryoEMdeadenylasemRNAPab1PABPPan2-Pan3poly(A) tailRNPRRM

Identifiers

PMID31104843
PMCPMC6547884

What OpenQuestion holds

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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 OpenQuestion graph.