T cell receptor
A T-cell receptor (TCR) is a protein on the surface of T-cells, which are a type of immune cell. TCRs play a crucial role in recognizing and responding to foreign invaders, like viruses or bacteria. When a pathogen invades the body, pieces of it (antigens) are presented on the surface of infected cells. TCRs bind specifically to these antigens, triggering the T-cells to activate and fight the infection. This process is essential for the immune system to identify and eliminate harmful threats while maintaining a response to prevent future infections.
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T Cell Receptors (TCRs) are specialized proteins found on the surface of T cells, a type of immune cell. They play a crucial role in recognizing and responding to pathogens, like viruses and bacteria. Each TCR is unique and can identify a specific fragment of a pathogen, known as an antigen. Once a TCR binds to its target antigen, it triggers a series of immune responses to eliminate the threat. This ability to recognize different antigens is vital for the immune system's adaptability, helping the body to remember past infections and respond more effectively in the future.