Fig. 1

Broad substrate specificity of CATSa. a Acetylation of chloramphenicol and alcohol by a chloramphenicol acetyltransferase (CAT) and an alcohol acetyltransferase (AAT), respectively. b Comparison between the predicted binding free energies for various alcohols bound to the binding pocket of CATSa and the titer of esters produced by an CATSa-overexpressing E. coli with external supply of alcohols. c Structure of the CATSa homology model. The red arrows indicate the binding pockets (in yellow cloud) formulated by the trimeric structure of CATSa