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Medical Definition of Complement 5
1. The fifth component in the complement reaction sequence, probably exists in a complex with c6 and c7. It is a beta-globulin with a sedimentation coefficient of 10, serum concentration of 75 micrograms/ml and molecular weight of 180,000. It is activated by c423 and releases fragments with anaphylatoxic, chemotactic, and histamine-releasing actions and affecting smooth muscle. (12 Dec 1998)
Lexicographical Neighbors of Complement 5
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