Derived from proteolytic degradation of complent C5, C5 anaphylatoxin is a mediator of local inflammatory process. Binding to the receptor C5AR1 induces a variety of responses including intracellular calcium release, contraction of smooth muscle, increased vascular permeability, and histamine release from mast cells and basophilic leukocytes. C5a is also a potent chokine which stimulates the locomotion of polymorphonuclear leukocytes and directs their migration toward sites of inflammation.
Three-dimensional structure of porcine C5adesArg from 1H nuclear magnetic resonance data.Williamson M.P., Madison V.S.Biochemistry 29:2895-2905(1990)
Research Topic:Others