Complement C4-A

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

**Definition:** Complement C4-A (1744 aa, ~193 kDa) is encoded by the human C4A gene. This protein plays a role in both host defense and inflammation.

**Synonyms:** - Acidic C4 - Acidic Complement C4 - C3 and PZP-Like Alpha-2-Macroglobulin Domain-Containing Protein 2 - C4A - Complement Component 4A - Complement Component 4S - Rodgers Form of C4