Evidence map›Paper›PMID 26294658›Full record

ArticleGenes & development2015

Mextli proteins use both canonical bipartite and novel tripartite binding modes to form eIF4E complexes that display differential sensitivity to 4E-BP regulation.

Daniel Peter, Ramona Weber, Carolin Köne, Min-Yi Chung, Linda Ebertsch, Vincent Truffault, Oliver Weichenrieder, Cátia Igreja, Elisa Izaurralde

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–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

14 citing papers in PubMed, 25 citations in OpenAlex.

  1. Med9 Is a Novel eIF4E-Interacting Protein inInternational journal of molecular sciences · 2026
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  6. A Series of Tubes: TheJournal of developmental biology · 2020
    Review
  7. Article
  8. Article
  9. NovelG3 (Bethesda, Md.) · 2019
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
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

9 authors at 1 institution in 1 country.

Daniel PeterDepartment of Biochemistry, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany.
Ramona WeberDepartment of Biochemistry, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany.
Carolin KöneDepartment of Biochemistry, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany.
Min-Yi ChungDepartment of Biochemistry, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany.
Linda EbertschDepartment of Biochemistry, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany.
Vincent TruffaultDepartment of Biochemistry, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany.
Oliver WeichenriederDepartment of Biochemistry, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany.
Cátia IgrejaDepartment of Biochemistry, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany.
Elisa IzaurraldeDepartment of Biochemistry, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany.
Max Planck Institute for Developmental Biology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The eIF4E-binding proteins (4E-BPs) are a diverse class of translation regulators that share a canonical eIF4E-binding motif (4E-BM) with eIF4G. Consequently, they compete with eIF4G for binding to eIF4E, thereby inhibiting translation initiation. Mextli (Mxt) is an unusual 4E-BP that promotes translation by also interacting with eIF3. Here we present the crystal structures of the eIF4E-binding regions of the Drosophila melanogaster (Dm) and Caenorhabditis elegans (Ce) Mxt proteins in complex with eIF4E in the cap-bound and cap-free states. The structures reveal unexpected evolutionary plasticity in the eIF4E-binding mode, with a classical bipartite interface for Ce Mxt and a novel tripartite interface for Dm Mxt. Both interfaces comprise a canonical helix and a noncanonical helix that engage the dorsal and lateral surfaces of eIF4E, respectively. Remarkably, Dm Mxt contains a C-terminal auxiliary helix that lies anti-parallel to the canonical helix on the eIF4E dorsal surface. In contrast to the eIF4G and Ce Mxt complexes, the Dm eIF4E-Mxt complexes are resistant to competition by bipartite 4E-BPs, suggesting that Dm Mxt can bind eIF4E when eIF4G binding is inhibited. Our results uncovered unexpected diversity in the binding modes of 4E-BPs, resulting in eIF4E complexes that display differential sensitivity to 4E-BP regulation.

Indexed as

Models, MolecularAnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsCarrier ProteinsDrosophila melanogasterDrosophila ProteinsEvolution, MolecularGene Expression RegulationGenetic VariationProtein BindingProtein Interaction Domains and MotifsProtein Structure, TertiaryReproducibility of ResultsCaenorhabditis elegans ProteinsCarrier ProteinsDrosophila Proteins4E-BPCUPeIF4FeIF4GMextlitranslational regulation

Identifiers

PMID26294658
PMCPMC4573856
OpenAlexW2116482523

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.