Antigens, Surface

Cell Surface Antigen; Immunologic Surface Markers; Markers, Immunological Surface; Surface Antigen; Surface Markers, Immunologic; Antigen, Cell Surface; Antigen, Surface; Antigens, Cell Surface; Immunological Surface Markers; Markers, Immunologic Surface
Antigens on surfaces of cells, including infectious or foreign cells or viruses. They are usually protein-containing groups on cell membranes or walls and may be isolated.