Dictionary » A » Allolactose



a sugar, isomeric with lactose, that is the true inducer of the lac operon.

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Secondary Sugars(metabolism/sugar/bacteria/Lac Operon)

... I know that bacteria cells prefer galactose, but will still use lactose, so does that mean lactose is a secondary sugar? Also does that make allolactose(lac operon inducer) a secondary sugar? Thanks

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by Vulpess
Mon Dec 16, 2013 3:40 am
Forum: Microbiology
Topic: Secondary Sugars(metabolism/sugar/bacteria/Lac Operon)
Replies: 2
Views: 3033

Questions regarding lac/trp operons

... consider this I know that in the presence of glucose ALONE we still get negligible lac products (let's say 0.5 units) because there is always some allolactose present (this is the inducer, it binds to the repressor and gets off the operator, thus allowing transcription) NOW, in an I(S) mutant, ...

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by operon
Mon Mar 12, 2007 9:17 pm
Forum: Molecular Biology
Topic: Questions regarding lac/trp operons
Replies: 2
Views: 5306

Lactose Operon

A small correction, though I guess a bit late for the question: Technically, allolactose is the inducer. e. coli converts a small amount of lactose to allolactose and this then binds to the repressor.

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by pdavis68
Mon May 22, 2006 3:54 am
Forum: Cell Biology
Topic: Lactose Operon
Replies: 2
Views: 2070

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