Evidence map›Paper›PMID 12169634›Full record

ArticleThe EMBO journal2002

The C.elegans MAPK phosphatase LIP-1 is required for the G(2)/M meiotic arrest of developing oocytes.

Alex Hajnal, Thomas Berset

Open access · greenAbstract read
In one paragraph

Article in The EMBO journal, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
0.7field-weighted citation impact, top 39% 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

39 citing papers in PubMed, 62 citations in OpenAlex.

  1. Conserved Gαq-PLCβ-PKC signaling mediates trametinib resistance in BRAFbioRxiv : the preprint server for biology · 2025
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  2. Review
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  5. Reevaluation of the role of LIP-1 as an ERK/MPK-1 dual specificity phosphatase in theProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  6. Article
  7. Phospho-Regulation of Meiotic Prophase.Frontiers in cell and developmental biology · 2021
    Review
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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

2 authors at 1 institution in 1 country.

Alex HajnalZoologisches Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland. ahajnal@zool.unizh.ch
Thomas Berset
University of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the Caenorhabditis elegans hermaphrodite germline, spatially restricted mitogen-activated protein kinase (MAPK) signalling controls the meiotic cell cycle. First, the MAPK signal is necessary for the germ cells to progress through pachytene of meiotic prophase I. As the germ cells exit pachytene and enter diplotene/diakinesis, MAPK is inactivated and the developing oocytes arrest in diakinesis (G(2)/M arrest). During oocyte maturation, a signal from the sperm reactivates MAPK to promote M phase entry. Here, we show that the MAPK phosphatase LIP-1 dephosphorylates MAPK as germ cells exit pachytene in order to maintain MAPK in an inactive state during oocyte development. Germ cells lacking LIP-1 fail to arrest the cell cycle at the G(2)/M boundary, and they enter a mitotic cell cycle without fertilization. LIP-1 thus coordinates oocyte cell cycle progression and maturation with ovulation and fertilization.

Indexed as

Caenorhabditis elegans ProteinsCell Cycle ProteinsAnimalsCaenorhabditis elegansFertilizationG2 PhaseMAP Kinase Signaling SystemMeiosisMitogen-Activated Protein Kinase 1MitosisMutationOocytesOogenesisOvulationProtein Serine-Threonine KinasesProtein Tyrosine PhosphatasesCaenorhabditis elegans ProteinsCell Cycle Proteinslip-1 protein, C elegansMitogen-Activated Protein Kinase 1mpk-1 protein, C elegansProtein Serine-Threonine KinasesProtein Tyrosine Phosphatases

Identifiers

PMID12169634
PMCPMC126168
OpenAlexW1966288564

What OpenQuestion 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 OpenQuestion graph.