Which is a Chemoattractant -: (A) C5a, (B) Cl, (C) C3, (D) C2
Answer is A. Ans-C5a* Major opsonins: C3b, IgG, mannose-binding lecithin (MBL), fibronectin, fibrinogen, and CRP.* Membrane attack complex: MAC has a subunit composition of C5b, C6, C7fC8, and polymeric C9* Anaphylatoxin: Both C3a and C5a anaphylatoxin activity.