Proceedings of the National Academy of Sciences of the United States of America, Vol. 101, No. 27 (Jul. 6, 2004), pp. 10127-10131 (5 pages) The lectin complement pathway in innate immunity is closely ...

It was called ‘complement’ because it aided the antibacterial activity of antibodies. However, it is now known that the complement system can be activated early in an infection without the presence of ...