. "Authored: Jupe, S, 2010-10-26"^^ . "Edited: Jupe, S, 2010-11-01"^^ . "Reviewed: Fraczek, LA, 2012-02-13"^^ . "Reviewed: Bradley, DT, 2012-02-13"^^ . "Factor H (FH) binds to C3bBb, leading to displacement of Bb. Complement factor H-related protein 3 (FHR-3) has also been reported to bind C3Bb leading to inhibition of C3Bb C3 convertase activity (Fritsche et al. 2010). FH also acts as a cofactor for the factor I-mediated proteolytic inactivation of C3b to iC3b."^^ . . . . . . . . "Factor H binds to C3bBb"^^ . . . .