binding of monoclonal antibodies ( mab ) to human mhc coded class i antigens , w6.32hl or 61d2 , specifically leads to clustering of these antigens and their assembly at one polar site on a cell , whereby these class i antigens tow class ii-antigens with them into the polar cap revealing preexisting or arising molecular complexes in the membrane of the living cell .
C0007634
cell
C0007603
membrane