His research has focused on mechanistic enzymology and the discovery of enzyme inhibitors. In enzymology, a thiamine-diphosphate kinase is an enzyme involved in thiamine metabolism. He also teaches Honors Organic Chemistry, Chemical Biology and Enzymology. Petsko's past research interests have been in protein crystallography and enzymology. In enzymology, formate C-acetyltransferase ("pyruvate formate lyase") () is an enzyme. Ishino has contributed to the development of enzymology and nucleic acids research in his life. The enzymology of proteases provides some of the clearest examples of convergent evolution. The enzymology of proteases provides some of the clearest known examples of convergent evolution. Here, Ahn worked with Judith Klinman, studying enzymology. Here, she studied the enzymology of salt-tolerant and salt-loving microbes involved in the food chain. He is currently an editor of the influential scientific book series, "Methods in Enzymology".