A possible split of antigen DQw1 identified by antiserum T3516

Abstract
One of the human class II antigens DQw1, which was officially recognized at the 9th International Histocompatibility Workshop in 1984, has a comparatively broad spectrum. One multiparous woman's serum was confirmed to have an antibody which shows a reaction pattern of short DQw1 or a split of DQw1. Our analysis was performed with a population study, two‐dimensional gel electrophoresis and blocking experiment by monoclonal antibodies.