Allolactose is a disaccharide similar to lactose. It consists of the monosaccharides D-galactose and D-glucose linked through a β1-6 glycosidic linkage instead of the β1-4 linkage of lactose. It may arise from the occasional transglycosylation of lactose by β-galactosidase. It is an inducer of the lac operon in Escherichia coli. It binds to a s...
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http://en.wikipedia.org/wiki/Allolactose
A sugar, isomeric with lactose, that is the true inducer of the lac operon. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
Type: Term Pronunciation: al′ō-lăk′tōs Definitions: 1. A sugar, isomeric with lactose, that is the true inducer of the lac operon.
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http://www.medilexicon.com/medicaldictionary.php?t=2355
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