HERCULES, Calif., July 21 2008 – Bio-Rad Laboratories, Inc. (AMEX: BIO and BIOb), a multinational manufacturer and distributor of life science research and clinical diagnostic products, announced today the availability of bulletin (number 5646A) entitled, “An Unrivaled, Novel Tag System for the Expression of Fusion-Tagged Proteins,” which describes the features and applications of new cloning and expression kits for the Bio-Rad Profinity eXact™ fusion-tag system.