Enzymes of the EC Class 4 (see E classification) that catalyse the non-hydrolytic removal of a group from a substrate with the resulting formation of a double-bond; or the reverse reaction, in which case the enzyme is acting as a synthetase. Include decarboxylases, aldolases and dehydratases.
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<enzyme> A class of enzymes that catalyze the cleavage of c-c, c-o, and c-n, and other bonds by other means than by hydrolysis or oxidation. ... Registry number: EC 4. ... (12 Dec 1998) ...
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===Liberal Democrats leadership election, 2006=== (Self-nomination.) This article is now pretty stable, as the election finished a few months ago. It is well-referenced and comprehensive and has undergone a peer review (albeit a fairly quiet one). —Whouk (talk) 20:36, 8 May 2006 (UTC) ...
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