Immunoglobulin superfamily (IgSF)

The Immunoglobulin Superfamily (IgSF) is a large group of proteins found on the surface of cells, particularly in the immune system. These proteins have a common structural feature called immunoglobulin domains, which are similar to the parts of antibodies. IgSF proteins help cells recognize and communicate with each other, playing key roles in immune responses, cell adhesion, and development. They are vital for the body's ability to identify and respond to foreign invaders like bacteria and viruses, as well as maintaining proper cell interactions and tissue organization.