S93-077 A Novel Protein and Gene Expressed by Human T Cells and Monocytes: Alloreaction-Associated Antigen (ARAg) 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. Alberto Rivas Curtis Ruegg Reiner Laus Edgar Engleman