Fullerton, California (November 29, 2007) – Beckman Coulter, Inc. introduces two new IOTest® reagents – Anti-NTB-A-PE and CD226 (DNAM-1)-PE. Both are monoclonal antibodies (mAbs) to cell surface receptors for NK (natural killer) cell studies, which provide important information in disease research. These new flow cytometry reagents are compatible with Beckman Coulter’s FC 500 series and Cell Lab Quanta™ SC systems as well as other instrument platforms.