Dozens of blood proteins make up the complement system — but no matter which pathway switches it on, it converges on one molecule, C3, and delivers just three weapons against a microbe. Tap each outcome to see how it works.
The complement hub: C3
Three outcomes of complementtap one to explore
💥 Lysis
🏷️ Opsonization
🔥 Inflammation
Keep the fragments straight: C3b binds and coats (opsonization) · C3a & C5a call in the crowd (inflammation) · C5b–C9 build the MAC that punches holes (lysis).