As an Amazon Associate I earn from qualifying purchases.

What is Activator in Biology? PDF | Download eBooks

Learn Activator definition in biology with explanation to study “What is Activator”. Study activator explanation with biology terms to review biology course for online degree programs.

Activator Definition

  • Activator is a protein that binds to DNA and stimulates transcription of a gene.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Activator Explanation

Activator is a DNA-binding protein that regulates one or more genes by increasing the rate of transcription. Most activators are DNA-binding proteins that bind to enhancers or other elements on promoters to enhance the transcription of any protein that is needed urgently or in a large amount. The DNA site bound by the activator is referred to as an "activator site" and the part of the activator that makes protein-protein interactions with the general transcription machinery is referred to as the activating region.

Keep Learning Biology Explanations

What are Hydrocarbons?

Hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides. Hydrocarbons, from ...

What are Monocots?

Monocots differ from dicots in four distinct structural features: leaves, stems, roots and flowers. But, the differences start from the ...

What is Vascular cambium?

The vascular cambium is a plant tissue located between the xylem and the phloem in the stem and root of ...

What is Chromosomes?

The chromosomes are basically structures that hold the genetic material. The DNA molecule is neatly packaged and stacked in the ...

What are Ligands?

A ligand is an ion or molecule (functional group) that binds to a central metal atom to form a coordination ...

What are Carnivores?

A carnivore is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of ...