The lac operon is an operon, or group of genes with a single promoter (transcribed as a single mRNA). The genes in the operon encode proteins that allow the bacteria to use lactose as an energy source.

The lac operon in E. coli regulates lactose metabolism. It consists of three genes (lacZ, lacY, and lacA) and is controlled by a promoter, operator, and CAP site.

In general, an operon will contain genes that function in the same process. For instance, a well-studied operon called the lac operon contains genes that encode proteins involved in uptake and metabolism …

Dive into the workings of the Lac Operon, a cluster of genes regulated by a single promoter. Discover how cells control enzyme levels, switch energy sources, and manage gene expression through the …

The trp operon in Salmonella is a group of genes that help the bacteria make tryptophan when it's needed. It has a promoter (where RNA polymerase binds), an operator (controls on/off), and five …

Regulation of genes for lactose utilization. lac repressor, catabolite activator protein, and cAMP.

So this protein right here couldn't activate that operon, but now that you have these inducers, and we'll study that a little bit more when we think about the lac operon, this could be a small sugar of some …

According to this model, the lac operon itself consists of two genes: lacZ, which codes for β -galactosidase, and lacY, which codes for galactoside permease (the model also contains a gene …

Discover how gene expression is regulated at the transcription level, ensuring cells only produce necessary proteins. Learn about the Jacob Monod lac operon model, which illustrates this process in …

Examine RNA’s single-stranded structure and its role in gene expression. Compare DNA and RNA to discover how their structural differences enable distinct but interconnected functions in genetic …