Patsy, Try this website, a new one for antibody location. www.exactantigen.com Good luck At 02:40 PM 1/25/2006, you wrote: >has anyone used an antibody M2A Antigen (Lymphatic Endothelial Cell Marker) Gayle Callis HTL, HT, MT(ASCP) Research Histopathology Supervisor Veterinary Molecular Biology Montana State University Bozeman MT 59717