C3a Anaphylatoxin

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** C3a anaphylatoxin (77 aa, ~9 kDa) is encoded by the human C3 gene. This protein is involved in T-cell activation and survival, promotion of angiogenesis, chemotaxis, mast cell degranulation, macrophage activation and binding to complement component 3a receptor 1 (C3AR1).

**Synonyms:** - Anaphylatoxin C3a - Complement C3a Anaphylatoxin