In the alternative pathway,C3 and C5 convertase are stabilized by which of the following?

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Properdin stabilizes the alternative pathway's C3 and C5 convertase enzymes, leading to increased and sustained C3b deposition on target surfaces. Factor B is involved in the formation of C3 convertase but doesn't stabilize the convertase. Factor I is a regulatory protein that inactivates C3b and C4b, and C4 participates in the classical pathway of complement activation.

In the Alternative Pathway,C3 and C5 Convertase Are Stabilized by Which