Which of the following acts as a serine protease that, with cofactors, cleaves C3b and C4b?
A. DAF (CD55)
B. Properdin
C. Factor H
D. Factor I
E. MCP (CD46)
Answer: D
Which of the following acts as a serine protease that, with cofactors, cleaves C3b and C4b?
A. DAF (CD55)
B. Properdin
C. Factor H
D. Factor I
E. MCP (CD46)
Answer: D