CD81 (TAPA1), a member of the tetraspanin family, is expressed on virtually all nucleated cells, but above all on germinal center B cells. CD81 forms complexes with other tetraspanin proteins, intergrins, coreceptors. CD81 is expressed on exosome membranes. HBM provides five different clones of CD81 antibodies, all of them are able to recognize antigen in cell lysates and exosomes in different techniques indicated below.
Mouse Monoclonal Unconjugated
ELISA, WB, FACS, IP