期刊
CHEMBIOCHEM
卷 22, 期 12, 页码 2102-2106出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cbic.202000883
关键词
lactoylLys; molecular modeling; post-translational modification; protein modification; sirtuin
资金
- National Institutes of Health [T32 ES007091, 2T32GM06754 3-17, T32 GM008804, NIEHS R01ES031463, R35 GM137910]
- ALSAM Skaggs Scholars Program
Post-translational modifications play important roles in physiological and pathophysiological processes, and a novel PTM called lactoylLys has been identified. Sirtuin 2 has been found to control the abundance of lactoylLys, addressing a gap in understanding how nonenzymatic PTMs are regulated.
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.
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