OAKLAND, Calif.--Pangea Systems completed its collaboration with Roche Bioscience for the design of expression chips from expressed sequence tagged databases. The system uses bioinformatics tools that will be available within Pangea's GeneWorld. The collaboration allowed the efficient design of DNA chips for gene families for therapeutic and diagnostic interest. Roche Senior Vice-President Robert Booth said, "With the help of Pangea's chip design software, we are able to detect previously unknown gene family members."