Capsule and lipopolysaccharide - Escherichia coli: Pathotypes and Principles of Pathogenesis - page 533

FIGURE 17.6 The complement cascade. Black arrows indicate proteolytic cleavage while gray arrows represent a movement (the next step). The lectin pathway
is the same as the classical pathway in terms of C4 and C2 cleavage, except it is activated by MBL binding to carbohydrates on the cell surface and the associated
MASPs cleave C4 and C2. All pathways converge at the deposition of C3b on the bacterial cell surface.