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Medical Definition of Complement 3
1. The fourth component to attach in the complement reaction sequence. It is a beta-globulin with a sedimentation coefficient of 5.5, a molecular weight of 185,000 and a serum concentration of 1.3 micrograms/ml. Its fragments have anaphylatoxic, chemotactic, and histaminic action and affect smooth muscle. (12 Dec 1998)
Lexicographical Neighbors of Complement 3
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