The complement protein cascade is the same for the classical pathway, alternative pathway, and lectin pathway after the point in the cascade where the activation of takes place.
A) C2
B) C6
C) C1
D) C3
E) C5

Question

Quizplus · Accepted Answer

The complement protein cascade converges at the activation of C3, which is common to the classical, alternative, and lectin pathways.

The Complement Protein Cascade Is the Same for the Classical