Allolactose: Difference between revisions
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Allolactose is a [[molecule|molecule]] made of [[galactose|galactose]] and [[glucose|glucose]] joined by alpha - 1,6 [[glycosidic bond|glycosidic bond]]. It is the side product of the conversion of lactose to galactose and glucose by beta- [[galactosidase|galactosidase]]. Allolactose is an inducer of [[lac operon|lac operon]] in prokaryotes. It binds to the lac repressor causing a comformational change which reduces the reprossor's affinity for the operator DNA. As results [[RNA polymerase|RNA polymerase]] can initiate transcription of the [[lac genes|lac genes]]<ref>Berg JM, Tymoczko JL, Gatto GJ, Stryer L. Biochemistry. 8th ed. New York: W.H. Freeman &amp;amp;amp; Commpany, a Macmillan Education Print. 2015</ref>.<br> | |||
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Latest revision as of 22:24, 4 December 2017
Allolactose is a molecule made of galactose and glucose joined by alpha - 1,6 glycosidic bond. It is the side product of the conversion of lactose to galactose and glucose by beta- galactosidase. Allolactose is an inducer of lac operon in prokaryotes. It binds to the lac repressor causing a comformational change which reduces the reprossor's affinity for the operator DNA. As results RNA polymerase can initiate transcription of the lac genes[1].
References
- ↑ Berg JM, Tymoczko JL, Gatto GJ, Stryer L. Biochemistry. 8th ed. New York: W.H. Freeman &amp;amp; Commpany, a Macmillan Education Print. 2015