Complement factor D is a serine protease that is part of the alternative pathway of the complement system, which is an important part of the immune system. Factor D cleaves factor B to form the active component of the alternative pathway, C3bBb, which can then cleave C3 to form C3b. C3b is an opsonin that promotes phagocytosis of pathogens by immune cells.
3.4.21.46 Complement factor D
![example 373 [WO2012093101] - , used for , CAS No. E610249, by Aladdin Scientific](https://media-prod.aladdinsci.com/media/catalog/product/cache/5a65292c9ea620f6e55f72f0a2fa59fb/s/j/sj_500_E610249.jpg)
example 373 [WO2012093101], Inhibitor of complement factor DStarting at $600.90
Lampalizumab (anti-Complement Factor D), Antibody of complement factor DCas#:1278466-20-8
Starting at $109.90
![1-[2-[(1R,3S,5R)-3-[(6-bromopyridin-2-yl)carbamoyl]-2-azabicyclo[3.1.0]hexan-2-yl]-2-oxoethyl]indazole-3-carboxamide - , used for , CAS No. R609087, by Aladdin Scientific](https://media-prod.aladdinsci.com/media/catalog/product/cache/5a65292c9ea620f6e55f72f0a2fa59fb/s/j/sj_500_R609087.jpg)