C3 -> C3b
C3b + Factor_B <-> C3bB_closed
C3bB_closed <-> C3bB_open
C3bB_open -> C3bBb
C3bBb + Factor_H <-> C3bBbH
C3bBbH -> Bb + C3b + Factor_H
C3bBb -> Bb + C3b
C3b + Factor_H <-> C3bH
C3bH -> Factor_H + iC3b
0 -> C3
C3 -> 0
0 -> Factor_B
Factor_B -> 0
0 -> Factor_H
Factor_H -> 0
C3b + Properdin <-> C3bP
C3bP + Factor_B <-> C3bBP_open
C3bBP_closed <-> C3bBP_open
C3bBP_open -> C3bBbP
C3bBbP <-> C3bBb + Properdin
C3bBbP -> Bb + C3b + Properdin
C3bB_closed + Properdin <-> C3bBP_closed
C3bB_open + Properdin <-> C3bBP_open
0 -> Properdin
Properdin -> 0