A new study published in Nature Metabolism reports lysine pyruvylation as a previously underappreciated post-translational modification that links glycolysis-derived intermediates to epigenetic regulation. Researchers describe how the metabolic state can directly influence protein function through this modification. The work extends the concept of metabolic control over gene expression beyond transcriptional regulation, positioning Kpy as a mechanism that ties bioenergetic flux to chromatin-associated outcomes. As a result, it adds another layer to how cells translate nutrient availability into longer-term regulatory programs. For biotech drug development, the translational angle is that metabolism-to-epigenetics signaling pathways can represent tractable therapeutic targets—particularly in cancers where glycolytic rewiring is common. Key industry takeaway: Nature Metabolism identifies lysine pyruvylation as a metabolism-to-epigenetics conduit.