Complement component 5a
= Complement component 5a
{wiki=Complement_component_5a}
Complement component 5a (C5a) is a small but biologically active peptide that is generated during the complement activation pathway, specifically from the cleavage of complement component 5 (C5) by the enzyme C5 convertase. C5a serves as an important inflammatory mediator and plays a crucial role in the immune system by promoting various responses.