cardiolipin

(redirected from acetone-insoluble antigen)
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cardiolipin

[‚kärd·ē·ō′lip·ən]
(biochemistry)
A complex phospholipid found in the ether alcohol extract of powdered beef heart; mixed with leutin and cholesterol, it functions as the antigen in the Wassermann complement-fixation test for syphilis. Also known as diphosphatidyl glycerol.