Prism Biolab Co. Ltd. has added Genentech Inc., a unit of Roche Holding AG, to the list of users for its peptide mimetic small-molecules library after signing a multitarget research collaboration and licensing agreement. Under the agreement, Tokyo-based Prism Biolab will open its Pepmetics Library, a library of peptide mimetic small molecules, to screen against targets selected by Roche and Genentech.