ArticleNature communications2025
Genetically encoding ε-N-methacryllysine into proteins in live cells.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- The novel regulatory influence of Argonaute 1 on messenger RNA 5-methylcytosine modification in Arabidopsis thaliana.The plant genome · 2026Article
- Beyond acetylation: Evaluating the emerging biology of lysine acylation.Cell chemical biology · 2026Review
- Enrichable cross-linkers for mapping direct protein interactions.Genome biology · 2025Article
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Authors and funding
23 authors.
Funding
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Abstract
Lysine acylation is a ubiquitous post-translational modification (PTM) that plays pivotal roles in various cellular processes, such as transcription, metabolism, protein localization and folding. Thousands of lysine acylation sites have been identified based on advances in antibody enrichment strategies, highly sensitive analysis by mass spectrometry (MS), and bioinformatics. However, only 27 lysine methacrylation (Kmea) sites have been identified exclusively in histone proteins. It is hard to separate, purify and differentiate the Kmea modification from its structural isomer lysine crotonylation (Kcr) using general biochemical approaches. Here, we identify Kmea sites on a non-histone protein, Cyclophillin A (CypA). To investigate the functions of Kmea in CypA, we develop a general genetic code expansion approach to incorporate a non-canonical amino acid (ncAA) ε-N-Methacryllysine (MeaK) into target proteins and identify interacting proteins of methacrylated CypA using affinity-purification MS. We find that Kmea at CypA site 125 regulates cellular redox homeostasis, and HDAC1 is the regulator of Kmea on CypA. Moreover, we discover that genetically encode Kmea can be further methylated to ε-N-methyl-ε-N-methacrylation (Kmemea) in live cells.
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