Chemicals and Drugs [D] » Amino Acids, Peptides, and Proteins [D12] » Proteins » Blood Proteins » Immunoproteins » Complement System Proteins » Anaphylatoxins
Description
Serum peptides derived from certain cleaved COMPLEMENT PROTEINS during COMPLEMENT ACTIVATION. They induce smooth MUSCLE CONTRACTION; mast cell HISTAMINE RELEASE; PLATELET AGGREGATION; and act as mediators of the local inflammatory process. The order of anaphylatoxin activity from the strongest to the weakest is C5a, C3a, C4a, and C5a des-arginine. MeSH
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