Communications Chemistry, Published online: 13 May 2025; doi:10.1038/s42004-025-01535-wNitrogen-oxygen-sulfur (NOS) linkages serve as crucial allosteric redox switches in proteins, yet their diversity beyond lysine-cysteine pairs remains underexplored. Here, the authors employ machine learning and quantum-mechanical calculations to identify 69 NOS bonds, expanding protein chemistry’s landscape and offering new avenues for drug design and protein engineering.

Nature Physics - Experiments that directly probe the quantum geometric tensor in solids have not been reported. Now, the quantum metric and spin Berry curvature—dual components of the quantum...