inducer

A molecule, usually a substrate of a specific enzyme pathway, that combines with and deactivates an active repressor (produced by a regulator gene); this allows an operator gene previously repressed to activate the structural genes controlled by it to result in enzyme production; a homeostatic mechanism for regulating enzyme production in an inducible enzyme system.
- embryonal i. any compound that will effect differentiation in the early stages of development.
- gratuitous i. an analog of a natural i. that is capable of inducing an operon while not serving as a substrate for the enzyme being induced.

* * *

in·duc·er -'d(y)ü-sər n one that induces specif a substance that is capable of activating the transcription of a gene by combining with and inactivating a genetic repressor

* * *

in·duc·er (in-dər) in molecular genetics, a molecule that causes a cell or organism to accelerate synthesis of an enzyme or sequence of enzymes in response to an environmental signal. The inducer often acts by antagonizing the action of a corresponding repressor, and may be a substrate of the enzyme or may be some other molecule, such as a hormone.

Medical dictionary. 2011.

Look at other dictionaries:

  • Inducer — In*du cer, n. 1. One who, or that which, induces or incites. [1913 Webster] 2. Specifically: (Genetics) A substance which, when it contacts a living cell, causes the activation of a gene; as, non metabolizable inducers are useful for studying the …   The Collaborative International Dictionary of English

  • inducer — inducer. См. эвокатор. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • inducer — index abettor Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • Inducer — In molecular biology, an inducer is a molecule that starts gene expression. For a gene to be expressed, its DNA sequence must be copied (in a process known as transcription) to make a smaller, mobile molecule called messenger RNA (mRNA), which… …   Wikipedia

  • inducer — A low molecular weight compound or a physical agent that associates with a repressor protein to produce a complex that can no longer bind to the operator. Thus, the presence of the inducer turns on the expression of the gene(s) controlled by the… …   Glossary of Biotechnology

  • inducer — induce ► VERB 1) succeed in persuading or leading (someone) to do something. 2) bring about or give rise to. 3) produce (an electric charge or current or a magnetic state) by induction. 4) Medicine bring on (childbirth or abortion) artificially.… …   English terms dictionary

  • inducer — noun Date: circa 1538 one that induces; especially a substance that is capable of activating the transcription of a gene by combining with and inactivating a genetic repressor …   New Collegiate Dictionary

  • inducer — См. induttore …   Пятиязычный словарь лингвистических терминов

  • inducer — n. [L. in, in; ducere, to lead] A small molecule which causes an increase in the rate of enzyme synthesis when present …   Dictionary of invertebrate zoology

  • inducer — (in dūs er) A small molecule that stimulates the synthesis of an inducible enzyme …   Dictionary of microbiology

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.