C5
\sˈiː fˈa͡ɪv], \sˈiː fˈaɪv], \s_ˈiː f_ˈaɪ_v]\
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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.
By DataStellar Co., Ltd
