Anti-CD81 Recombinant Rabbit M

CD81 is a transmembrane protein that plays a crucial role in various biological processes, particularly in immune cell signaling and cell adhesion. It is part of the tetraspanin family, characterized by four membrane-spanning domains. CD81 is expressed on the surface of many cell types, including B cells, T cells, and hepatocytes, and is involved in the formation of protein complexes that regulate cellular interactions. One of its key functions is its role in virus entry, as CD81 acts as a co-receptor for several viruses, including the HCV (Hepatitis C virus), facilitating viral entry into cells. CD81 also plays a significant role in immune responses, influencing B cell activation, T cell function, and the formation of immunological synapses. Due to its involvement in both immune regulation and viral infection, CD81 is a target of research for understanding immune system function and for the development of therapeutic strategies against viral infections.