Together with the team of Jens Preben Morth, Peter Westh (DTU), two members of the Bornscheuer group, and further colleagues, the crystal structure of a urethanase (UMG-SP-3) and its mutagenesis are reported. Read more in the just accepted publication in Angew. Chem. Int. Ed. see https://doi.org/10.1002/anie.202419535.