This invention consists of mouse L1/2 pre B cells and human Jurkat cells transfected with serpentine receptors. These cell lines have been shown to be induced by specific ligands to activate lymphoid cell integrins and hence cell adhesion.
Alloreaction-associated antigen (ARAg) is a novel member of the immunoglobulin superfamily. This invention's issued US patent claims composition of matter of ARAg polypeptides and nucleic acids encoding ARAg polypeptides.