Receptor, Anaphylatoxin C5aAnaphylatoxinsComplement C3aComplement C5aMonocytesReceptors, ComplementComplement C5a, des-ArginineComplement C5Complement C3Complement C4aComplement ActivationAntigens, CDToxins, BiologicalAnaphylaxisNeutrophilsCells, CulturedAmino Acid SequenceMembrane ProteinsRecombinant ProteinsMolecular Sequence DataComplement System ProteinsLysine CarboxypeptidaseMice, Inbred C57BLComplement C4TriprolidineHistamine ReleaseMacrophagesImmunoelectrophoresis