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Complement 3d

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Complement 3d

(Science: chemical) An inactivated fragment of complement 3b (c3b). Factor h makes c3b susceptible to factor i (formerly called kaf, c3binf, or enzyme 3b inactivator) to form ic3b. Then factor i and a trypsin-like proteolytic Enzyme further cleave ic3b into c3c and c3dg. Serum proteases degrade c3dg into complement 3d (c3d) and c3g.

chemical name: complement C3d