Complement Factor B

**Semantic type:** Amino Acid, Peptide, or Protein|Enzyme

**Definition:** Complement factor B (764 aa, ~86 kDa) is encoded by the human CFB gene. This protein plays a role in C3/C5 convertase activity.

**Synonyms:** - C3 Proaccelerator - C3 Proactivator - C3/C5 Convertase - CFB - EC 3.4.21.47 - Factor B - GBG - Glycine-Rich Beta Glycoprotein - Glycine-Rich Beta-Glycoprotein - Properdin Factor B