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. 2025 Jun 14;24(7):3412–3428. doi: 10.1021/acs.jproteome.5c00093

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Classification of identified reactive carbonyl modifications. Mass shifts corresponding to ARP-labeled carbonyl groups are grouped based on inferred pathways: metal-catalyzed oxidation (MCO), adducts with reactive carbonyl species (RCS), or unidentified PTMs assigned by de novo sequencing (unknown).