Sructures of Torpedo californica acetylcholinesterase in complex with non-chiral donepezil-like inhibitors are published by Caliandro et al. and are available (5NAP, 5NAU) Crystal structure of a lactonase from Cladophialophora bantiana is available (5XWZ) and published by Hui et al. Structure of Computer-based rational design of improved functionality for antibody catalysts (not an alpha/beta hydrolase) toward organophosphorus compounds is available (5TJD) and will be published soon by Chatziefthimiou et al.