CFB is an important component of the alternative pathway of the complement system and is cleaved by factor D, producing two fragments: Ba and Bb. The Bb fragment is characterized as a serine protease and subsequently forms a complex with complement factor 3b, ultimately producing a C3 or C5 convertase. Complement Factor B/CFB Protein, Mouse (His) is the recombinant mouse-derived CFB protein, expressed by E. coli , with N-6*His labeled tag.
