Evidence map›Paper›PMID 33479176›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Deubiquitinating enzyme amino acid profiling reveals a class of ubiquitin esterases.

Virginia De Cesare, Daniel Carbajo Lopez, Peter D Mabbitt, Adam J Fletcher, Mathieu Soetens, Odetta Antico, Nicola T Wood, Satpal Virdee

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing 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

50 citing papers in PubMed.

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  7. Insights into non-proteinaceous ubiquitination.Biochemical Society transactions · 2025
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Virginia De CesareMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, DD1 5EH, Scotland, United Kingdom.
Daniel Carbajo LopezMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, DD1 5EH, Scotland, United Kingdom.
Peter D MabbittMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, DD1 5EH, Scotland, United Kingdom.ORCID http://orcid.org/0000-0001-7202-400X
Adam J FletcherMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, DD1 5EH, Scotland, United Kingdom.ORCID http://orcid.org/0000-0003-1742-6588
Mathieu SoetensMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, DD1 5EH, Scotland, United Kingdom.ORCID http://orcid.org/0000-0001-9237-404X
Odetta AnticoMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, DD1 5EH, Scotland, United Kingdom.
Nicola T WoodMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, DD1 5EH, Scotland, United Kingdom.
Satpal VirdeeMedical Research Council Protein Phosphorylation and Ubiquitylation Unit, University of Dundee, DD1 5EH, Scotland, United Kingdom s.s.virdee@dundee.ac.uk.ORCID http://orcid.org/0000-0002-7052-9802

Funding

Biotechnology and Biological Sciences Research Council BB/P003982/1Medical Research Council MC_UU_00018/7Medical Research Council MC_UU_12016/8
6 · The paper itself

Abstract

The reversibility of ubiquitination by the action of deubiquitinating enzymes (DUBs) serves as an important regulatory layer within the ubiquitin system. Approximately 100 DUBs are encoded by the human genome, and many have been implicated with pathologies, including neurodegeneration and cancer. Non-lysine ubiquitination is chemically distinct, and its physiological importance is emerging. Here, we couple chemically and chemoenzymatically synthesized ubiquitinated lysine and threonine model substrates to a mass spectrometry-based DUB assay. Using this platform, we profile two-thirds of known catalytically active DUBs for threonine esterase and lysine isopeptidase activity and find that most DUBs demonstrate dual selectivity. However, with two anomalous exceptions, the ovarian tumor domain DUB class demonstrates specific (iso)peptidase activity. Strikingly, we find the Machado-Joseph disease (MJD) class to be unappreciated non-lysine DUBs with highly specific ubiquitin esterase activity rivaling the efficiency of the most active isopeptidases. Esterase activity is dependent on the canonical catalytic triad, but proximal hydrophobic residues appear to be general determinants of non-lysine activity. Our findings also suggest that ubiquitin esters have appreciable cellular stability and that non-lysine ubiquitination is an integral component of the ubiquitin system. Its regulatory sophistication is likely to rival that of canonical ubiquitination.

Indexed as

Amino AcidsDeubiquitinating EnzymesEsterasesHumansLysineMachado-Joseph DiseaseMass SpectrometryProtein Processing, Post-TranslationalUbiquitinUbiquitinationAmino AcidsDeubiquitinating EnzymesEsterasesLysineUbiquitinDUBsnon-lysine ubiquitinationubiquitin

Identifiers

PMID33479176
PMCPMC7848729

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.