Complement is part of the innate immune system (one you are born with). It consists of small protein molecules that circulate in the blood stream.
Complement has three pathways, The classic pathway; The alternative pathway; and the lectin pathway.
In the classical pathway, complement is activated by triggers such as the binding of an antigen to an antibody. In the alternative pathway, Complement is part of the natural immune system and complement assist in the opsonization, or the marking of an antigen to be destroyed by a phagocyte. This like the antigen has been marked with black marker so that a killer cell (phagocyte-cell eater) can find it to eat it. Finally the lectin pathway, which is similar to the classical pathway in terms of structure but this pathway starts with lectin or ficolin binding to sugars. After activation complement can trigger any number of events such as opsonization, chemotaxis, inflammation, and lysis (breaking) of cells.
They signal phagocytes. : NovaNet
The complement system is a group of small proteins helps or complent the antibodies or phagocytic cells to clear the pathogens. These small proteins generally circulating in blood plasma as an inactive form. complements are regulated by complement control proteins. complement caascade pathway activates various complement proteins.
Complement proteins are a series of immune proteins that carry out complement cascade reactions. These proteins are helping the immune system to lean up from the cells. complement proteins are not antibodies.
Complement proteins
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Complement deficiencies are a group of disorders in which there is a reduced level of specific proteins, complement, involved in proper immune functioning.
Complement is a collection of proteins found in the blood that are effective against a wide variety of bacteria. Complement can cause bacterial lysis when the C5-C9 proteins are activated by C3. The C9 proteins insert into the bacterial cell membrane causing lysis and destruction of the bacteria.
The Proteome1
Plasma proteins
The prelude to invasion.
Chuck Norris
complement proteins signaling phagocytes.
complement