Evidence map›Paper›PMID 39787076›Full record

ArticlePLoS genetics2025

Genetic gradual reduction of OGT activity unveils the essential role of O-GlcNAc in the mouse embryo.

Sara Formichetti, Agnieszka Sadowska, Michela Ascolani, Julia Hansen, Kerstin Ganter, Christophe Lancrin, Neil Humphreys, Mathieu Boulard

Abstract read
In one paragraph

Article in PLoS genetics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Review
  2. Article
  3. Maternal O-GlcNAc Transferase Is Required for the Asymmetry of Epigenetic Modifications in Mouse Zygotes.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. 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

8 authors.

Sara FormichettiEpigenetics & Neurobiology Unit, EMBL Rome, European Molecular Biology Laboratory, Italy.ORCID https://orcid.org/0000-0002-7907-2239
Agnieszka SadowskaEpigenetics & Neurobiology Unit, EMBL Rome, European Molecular Biology Laboratory, Italy.
Michela AscolaniEpigenetics & Neurobiology Unit, EMBL Rome, European Molecular Biology Laboratory, Italy.ORCID https://orcid.org/0009-0000-4757-793X
Julia HansenEpigenetics & Neurobiology Unit, EMBL Rome, European Molecular Biology Laboratory, Italy.ORCID https://orcid.org/0000-0001-7828-1269
Kerstin GanterEpigenetics & Neurobiology Unit, EMBL Rome, European Molecular Biology Laboratory, Italy.
Christophe LancrinEpigenetics & Neurobiology Unit, EMBL Rome, European Molecular Biology Laboratory, Italy.ORCID https://orcid.org/0000-0003-0028-7374
Neil HumphreysEpigenetics & Neurobiology Unit, EMBL Rome, European Molecular Biology Laboratory, Italy.
Mathieu BoulardEpigenetics & Neurobiology Unit, EMBL Rome, European Molecular Biology Laboratory, Italy.ORCID https://orcid.org/0000-0001-5135-8529

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The reversible glycosylation of nuclear and cytoplasmic proteins (O-GlcNAcylation) is catalyzed by a single enzyme, namely O-GlcNAc transferase (OGT). The mammalian Ogt gene is X-linked, and it is essential for embryonic development and for the viability of proliferating cells. We perturbed OGT's function in vivo by creating a murine allelic series of four single amino acid substitutions, reducing OGT's catalytic activity to a range of degrees. The severity of the embryonic lethality was proportional to the extent of impairment of OGT's catalysis, demonstrating that the O-GlcNAc modification itself is required for early development. We identified hypomorphic Ogt alleles that perturb O-GlcNAc homeostasis while being compatible with embryogenesis. The analysis of the transcriptomes of the mutant embryos at different developmental stages suggested a sexually-dimorphic developmental delay caused by the decrease in O-GlcNAc. Furthermore, a mild reduction of OGT's enzymatic activity was sufficient to loosen the silencing of endogenous retroviruses in vivo.

Indexed as

AcetylglucosamineN-AcetylglucosaminyltransferasesAllelesAmino Acid SubstitutionAnimalsEmbryo, MammalianEmbryonic DevelopmentFemaleGene Expression Regulation, DevelopmentalGlycosylationMaleMiceAcetylglucosamineN-AcetylglucosaminyltransferasesO-GlcNAc transferaseOgt protein, mouse

Identifiers

PMID39787076
PMCPMC11717234

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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.