Pintaantigeeni
Pintaantigeeni refers to an antigen present on the surface of a cell or virus. These antigens are typically proteins or carbohydrates that are exposed to the external environment and can be recognized by the immune system. The immune system's response to surface antigens is crucial for identifying foreign invaders, such as bacteria and viruses, and for distinguishing between self and non-self cells.
Antibodies, which are proteins produced by B cells, are designed to bind specifically to these surface antigens.