Complement Activation proteins r Classical pathway: Clq, clr, c1s C4,C2 r MBL pathway: MbL, MASP r Alternative pathway: factor B,D r Terminal pathway: C3, C5, C6, C7, c8,c9Activation Proteins Classical pathway: C1q, C1r, C1s, C4, C2 MBL pathway: MBL, MASP Alternative pathway: factor B, D Terminal pathway: C3, C5, C6, C7, C8, C9 Complement