ArticleNature chemistry2026
Global profiling of arginine reactivity and ligandability in the human proteome.
Article in Nature chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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Who cites it
5 citing papers in PubMed.
- Protocol for covalent ligand discovery via library-versus-proteome screening.STAR protocols · 2026Article
- Scaling covalent ligand discovery through dynamic combinatorial library-versus-proteome screening.Nature communications · 2026Article
- No Time to Fold: Intrinsically Disordered Microproteins in Action.Biochemistry · 2026Review
- A Global Ligandability Map of Tryptoline Butynamide Stereoprobes Identifies Covalent Inhibitors of the Actin Maturation Protease.Journal of the American Chemical Society · 2026Article
- A Global Ligandability Map of Tryptoline Butynamide Stereoprobes Identifies Covalent Inhibitors of the Actin Maturation Protease ACTMAP.bioRxiv : the preprint server for biology · 2026Article
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
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.
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Registered trials
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