Cited by 12Click Chemistry and ApplicationsAdvanced Proteomics Techniques and ApplicationsCancer-related gene regulation

Global profiling of arginine reactivity and ligandability in the human proteome

Open access
Wang, Yuena, Hu, Tao, Zhu, Lin, Xie, Shaoshuai, Yang, Xi, Xu, Caifeng, Zhai, Yansheng, Li, Youming +3 more·2026·Nature Chemistry

Published version of a preprint

Abstract

Despite the crucial biological functions of arginine, its reactivity and ligandability within the human proteome remain largely unexplored. Here we apply activity-based protein profiling (ABPP) with phenylglyoxal-based chemical probes to map arginine reactivity globally. Screening phenylglyoxal derivatives identified a probe with enhanced coverage and selectivity, enabling quantification of 4,606 arginine sites across human cell lines. Among these, critical residues regulate liquid-liquid phase separation. Arginine reactivity was further assessed by on-beads reductive dimethylation proteomics, revealing a subset of hyper-reactive sites. Competitive fragment screening using data-independent acquisition ABPP (DIA-ABPP) generated a ligandability map of arginine residues across 60 dicarbonyl compounds. This dataset revealed ligandable arginines that modulate protein activity, in particular protein-protein interactions, highlighting potential covalent drug targets. Together, this work provides a proteome-wide profile of arginine reactivity and ligandability, offering insights into the functional landscape of arginines and expanding the scope of covalent drug discovery to include arginine-targeting molecules.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/s41557-025-02012-6

Cites

75 of 75 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Wang, Y., Hu, T., Zhu, L., Xie, S., Yang, X., Xu, C., Zhai, Y., Li, Y., Huang, X., Yang, B., & Li, G.
Affiliations
  • Shenzhen Bay Laboratory (CN)
  • University of Electronic Science and Technology of China (CN)
  • Northwest A&F University (CN)
Corresponding author
Li, Gang
Venue
Nature Chemistry
Published
2026-01-02
Volume
18
Issue
2
Pages
374-385
ISSN
  • 1755-4330 (ISSN-L)
  • 1755-4349
OpenAlex
W7117999367
Cited by
12
References
75
Citations by year
2026: 12
FWCI
21.33
Type
journal article
Language
en
Open access
Locations
  • Nature Chemistry (publishedVersion)
  • Research Square (acceptedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Chemistry › Organic Chemistry › Click Chemistry and Applications
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cancer-related gene regulation
Keywords
human proteome, activity-based protein profiling, dicarbonyl compounds, liquid-liquid phase separation, protein-protein interaction, protein function regulation
MeSH terms
Arginine, Humans, Ligands, Proteome, Proteomics

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review