Allolactose: Difference between revisions
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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. | 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.<ref>Berg JM, Tymoczko JL, Gatto GJ, Stryer L. Biochemistry. 8th ed. New York: W.H. Freeman &amp; Commpany, a Macmillan Education Print. 2015</ref> | ||
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Revision as of 08:11, 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 & Commpany, a Macmillan Education Print. 2015