TLR9

TLR9, or Toll-like receptor 9, is a part of the immune system that helps detect certain DNA sequences common in bacteria and viruses. Located mainly inside immune cells, TLR9 recognizes specific DNA patterns called unmethylated CpG motifs, signaling the body to activate defenses against infections. When TLR9 detects these DNA signatures, it triggers immune responses that include releasing chemicals to coordinate attacks on pathogens. It plays a crucial role in the body’s ability to identify and respond to microbial invaders, helping to maintain health and prevent infections.