Evidence map›Paper›PMID 24443563›Full record

ArticleThe Journal of biological chemistry2014

Regulation of human MutYH DNA glycosylase by the E3 ubiquitin ligase mule.

Julia Dorn, Elena Ferrari, Ralph Imhof, Nathalie Ziegler, Ulrich Hübscher

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
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  3. Review
  4. Article
  5. Article
  6. Targeting purine metabolism in ovarian cancer.Journal of ovarian research · 2022
    Review
  7. Review
  8. MUTYH: Not just polyposis.World journal of clinical oncology · 2020
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
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  18. Review
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 2 institutions in 1 country.

Julia DornInstitute for Veterinary Biochemistry and Molecular Biology, University of Zürich-Irchel, 8057 Zürich, Switzerland.
Elena FerrariInstitute for Veterinary Biochemistry and Molecular Biology, University of Zürich-Irchel, 8057 Zürich, Switzerland.
Ralph ImhofInstitute for Veterinary Biochemistry and Molecular Biology, University of Zürich-Irchel, 8057 Zürich, Switzerland.
Nathalie ZieglerInstitute of Food, Nutrition, and Health, ETH Zürich, 8092 Zürich, Switzerland.
Ulrich HübscherInstitute for Veterinary Biochemistry and Molecular Biology, University of Zürich-Irchel, 8057 Zürich, Switzerland. Electronic address: hubscher@vetbio.uzh.ch.
University of Zurich · CHETH Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oxidation of DNA is a frequent and constantly occurring event. One of the best characterized oxidative DNA lesions is 7,8-dihydro-8-oxoguanine (8-oxo-G). It instructs most DNA polymerases to preferentially insert an adenine (A) opposite 8-oxo-G instead of the appropriate cytosine (C) thus showing miscoding potential. The MutY DNA glycosylase homologue (MutYH) recognizes A:8-oxo-G mispairs and removes the mispaired A giving way to the canonical base excision repair that ultimately restores undamaged guanine (G). Here we characterize for the first time in detail a posttranslational modification of the human MutYH DNA glycosylase. We show that MutYH is ubiquitinated in vitro and in vivo by the E3 ligase Mule between amino acids 475 and 535. Mutation of five lysine residues in this region significantly stabilizes MutYH, suggesting that these are the target sites for ubiquitination. The endogenous MutYH protein levels depend on the amount of expressed Mule. Furthermore, MutYH and Mule physically interact. We found that a ubiquitination-deficient MutYH mutant shows enhanced binding to chromatin. The mutation frequency of the ovarian cancer cell line A2780, analyzed at the HPRT locus can be increased upon oxidative stress and depends on the MutYH levels that are regulated by Mule. This reflects the importance of tightly regulated MutYH levels in the cell. In summary our data show that ubiquitination is an important regulatory mechanism for the essential MutYH DNA glycosylase in human cells.

Indexed as

UbiquitinationAmino Acid SubstitutionCell Line, TumorChromatinDNA GlycosylasesFemaleHumansHypoxanthine PhosphoribosyltransferaseLysineMutationOvarian NeoplasmsTumor Suppressor ProteinsUbiquitin-Protein LigasesChromatinDNA GlycosylasesHUWE1 protein, humanHypoxanthine PhosphoribosyltransferaseLysinemutY adenine glycosylaseTumor Suppressor ProteinsUbiquitin-Protein Ligases8-Oxo-GBase Excision RepairDNA DamageE3 Ubiquitin LigaseMuleMutYHOxidative StressUbiquitination

Identifiers

PMID24443563
PMCPMC3945365
OpenAlexW1994659363

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.