Figure 4
A cartoon illustrating the conformational rearrangement in the cofactor upon transition from the free unliganded state to the complex with C3b. The C3b representation is adapted from Wu et al. (2009). C345c domain, light bronze; CUB domain, pink; TED domain, light green (with the thioester as a red dot); LNK, α′NT and MG domains of C3b, light grey for CrrY1–4, fH1–4 and CD551–4. The functionally important cofactor CCP1–CCP4 domains are represented as ovals. Since several of the cofactor contain subsequent CCP domains, a few more have been sketched in dashed lines. |