Complement proteins are found in
Serum
blood plasma as part of the body’s defense system against pathogens. They are produced by the liver and can be triggered to “complement” the action of antibodies by directly attacking and destroying pathogens. Complement proteins can also stimulate the immune system response by attracting and activating immune cells to the site of infection.
Complement proteins are found in blood plasma, which is the liquid component of blood that is separated from the blood cells during the process of centrifugation. They circulate in the bloodstream at all times, but their levels can increase rapidly during an infection or inflammation. The complement system is composed of over 30 different proteins that work together in a cascade-like manner to destroy pathogens. The proteins are designated with numbers and letters, for example, C1 to C9, and they function through the classical, alternative, or lectin pathways.
Overall, the complement system is a critical part of the innate immune response and plays a crucial role in protecting the body from infections and diseases caused by various pathogens, including viruses, bacteria, fungi, and parasites.
More Answers:
C3b: A Crucial Player in the Complement System for Immune Defense and Pathogen ClearanceC3a and C3b Fragments: The Vital Components of the Complement System for Pathogen Elimination and Inflammation.
Role of the Classical Complement Pathway in Immune Response Against Pathogens