The lactose operon (lac operon) is an operon required for the transport and metabolism of lactose in E. coli and many other enteric bacteria. Although...

classically defined in the lac operon as a segment between the promoter and the genes of the operon. The main operator (O1) in the lac operon is located slightly...

used as an example of gene regulation in bacteria alongside the lac operon. trp operon contains five structural genes. The roles of their products are:...

the lac operon. The gene lacI is situated immediately upstream of lacZYA but is transcribed from a lacI promoter. The lacI gene synthesizes LacI repressor...

binding base-specifically to the major groove of the operator region of the lac operon, with base contacts also made by residues of symmetry-related alpha helices...

Regulation of acupuncture Lac operon, abbreviated Lac, operon controlling the metabolism of lactose in bacteria such as E. coli Lac Viet, the ancient people...

normally used in molecular biology to induce the lac operon. Inducer Lac operon § Regulation by allolactose Lac repressor allolactose at the U.S. National Library...

functional genes in this operon are lacZ, lacY, and lacA. The repressor gene, lacI, will produce the repressor protein LacI which is under allosteric...

lac operon is repressed. This is because glucose actively prevents the induction of lacZYA. In the ara operon (also known as the ara or araBAD operon)...

transcription of the lac operon, and it is therefore used to induce protein expression where the gene is under the control of the lac operator. Like allolactose...

their work on the E. coli lac operon, which encodes proteins necessary for the transport and breakdown of the sugar lactose (lac). From their own work and...

known as cAMP receptor protein (CRP), activates transcription at the lac operon of the bacterium Escherichia coli. Cyclic adenosine monophosphate (cAMP)...

rate of lac operon transcription. With a high glucose concentration, the cAMP concentration decreases, and the CRP disengages from the lac operon. Since...

β-galactosides, glucosides and lactosides. It is coded for by the lacA gene of the lac operon in E. coli. It catalyzes the following reaction: acetyl-CoA +...

induced by arabinose. Operon Catabolism Catabolite repression Other operon systems in E. coli: gal operon gab operon lac operon trp operon Voet, Donald & Voet...

Jacques Monod, Jean-Pierre Changeux and François Jacob discovered the lac operon in the bacterium Escherichia coli. It was a cluster of genes, arranged...

The lacUV5 promoter is a mutated promoter from the Escherichia coli lac operon which is used in molecular biology to drive gene expression on a plasmid...

regulation system is widely considered to be the identification in 1961 of the lac operon, discovered by François Jacob and Jacques Monod, in which some enzymes...

and focused on the lac operon model of gene expression, which led to a Nobel prize. Diauxie occurs because organisms use operons or multiple sets of...

the lac operon, the positive regulator would be the CRP-cAMP complex that must be bound close to the site of the start of transcription of the lac genes...

unsuccessful blue ones. β-galactosidase is a protein encoded by the lacZ gene of the lac operon, and it exists as a homotetramer in its active state. However...

the lac operon will express enzymes for the digestion of lactose when it is present, but if both lactose and glucose are present the lac operon is repressed...

The gal operon is a prokaryotic operon, which encodes enzymes necessary for galactose metabolism. Repression of gene expression for this operon works via...

regulatory factor (i.e. regulatory protein). A term derived from the lac operon, structural genes are typically viewed as those containing sequences of...

cis-acting regulatory sequence is the operator in the lac operon. This DNA sequence is bound by the lac repressor, which, in turn, prevents transcription...

catabolism. cAMP-CAP is required for transcription activation of the lac operon. This requirement reflects the greater simplicity with which glucose may...

C-terminal helices. It is encoded by the lacY gene in the lac operon. The LacY gene is a component of the lac operon that encodes lactose permease, a protein...

and the hydrate formula C12H22O11·H2O, making it an isomer of sucrose. Lac operon Lactic acid Lactose intolerance Nectar Sugars in wine Peter M. Collins...

statistic used in the analysis of wealth or income inequality lac operon, a DNA operon relating to the metabolism of lactose found in some bacteria London...

inactive transcription of the operon can occur (see e.g. Lac operon). The products of operon genes typically have related functions and are involved in...