Abstract
Post-translational modifications (PTMs) play roles in both physiological and pathophysiological processes through the regulation of enzyme structure and function. We recently identified a novel PTM, lactoylLys, derived through a nonenzymatic mechanism from the glycolytic by-product, lactoylglutathione. Under physiologic scenarios, glyoxalase 2 prevents the accumulation of lactoylglutathione and thus lactoylLys modifications. What dictates the site-specificity and abundance of lactoylLys PTMs, however, remains unknown. Here, we report sirtuin 2 as a lactoylLys eraser. Using chemical biology and CRISPR-Cas9, we show that SIRT2 controls the abundance of this PTM both globally and on chromatin. These results address a major gap in our understanding of how nonenzymatic PTMs are regulated and controlled.
Original language | English (US) |
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Pages (from-to) | 2102-2106 |
Number of pages | 5 |
Journal | ChemBioChem |
Volume | 22 |
Issue number | 12 |
DOIs | |
State | Published - Jun 15 2021 |
Keywords
- lactoylLys
- molecular modeling
- post-translational modification
- protein modification
- sirtuin
ASJC Scopus subject areas
- Biochemistry
- Molecular Medicine
- Molecular Biology
- Organic Chemistry