C5 Complement Immune Test - C5 Complement Test

The C5 complement assay is a quantitative measurement of serum C5 protein levels. C5 is a central component of the complement system, forming the convergence point of the classical and alternative pathways. It is hydrolyzed into C5a and C5b fragments, which initiate a cascade of important reactions in the immune and inflammatory responses, including the attraction of immune cells and the formation of the membrane attack complex (MAC).