properdin
Pronunciation: prō′per-din
Definition: A control protein for the alternate complement cascade, properdin stabilizes the C3 convertase enzyme, a deficiency of which increases susceptibility to systemic meningococcal infections and can be inherited in an x-linked pattern.
[pro- + L. perdo, to destroy]
See Also: properdin system, component of complement, factor P
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Examples: glitazone, GI cocktail, etc.

