reg·u·lon

(reg'yū-lon),

A set of structural genes, all with the same gene regulation, the gene products of which are involved in the same reaction pathway.

Farlex Partner Medical Dictionary © Farlex 2012

reg·u·lon

(reg'yū-lon)

A set of structural genes, all with the same gene regulation, with gene products involved in the same reaction pathway.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

regulon

a system where more than one structural GENE/OPERON, each with its own PROMOTER, is under control of the same regulator molecule, for example, an activator protein or repressor protein. The genes/operons collectively forming a regulon are often non-contiguous on the genome and share common regulatory sequences, such as activator binding sites (initiators) or operators (see OPERON MODEL), each of which is recognized by the same regulator molecule. A regulon may be positively controlled by an activator protein, as in the maltose regulon of ESCHERICHIA COLI, or negatively controlled by a repressor protein, as in the arginine regulon of E.coli.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

References in periodicals archive

We identified 90 additional differentially expressed genes associated with stress regulons based on a search of RegulonDB, UniProt, and the work of others (Table S4, Figure 3) [31, 34, 35, 37-58].

Stress-Adaptive Responses Associated with High-Level Carbapenem Resistance in KPC-Producing Klebsiella pneumoniae

Toward the identification and regulation of the Arabidopsis thaliana ABI3 regulon. Nucl.

Differential Gene Regulation of Lipid Synthesis in the Developing Seeds of Two Biodiesel Tree Species, Jatropha and Vernicia

Upon reaching a sufficient cell density on the intestinal mucosa, the Agr-like quorum-sensing system is triggered, which in turn up-regulates the VirR/VirS regulon. This regulon includes NetB.

Avian Pathol.: The pathogenesis of necrotic enteritis in chickens: what we know and what we need to know: a review

In response to an SOS-inducing treatment or condition, a signal (involving regions of single-stranded DNA) is generated that stimulates expression of the SOS regulon. RecA protein binding to single-stranded DNA regions in the presence of a nucleoside triphosphate forms a nucleoprotein filament and converts RecA protein to an activated form (12).

Overexpression of Salmonella enterica serovar Typhi recA gene confers fluoroquinolone resistance in Escherichia coli DH5[alpha]

In Ovations Holdings said it continues to pursue several potential business opportunities in the cancer-related field through its development and sale of sputum cytology and its partnership with Regulon, Inc.

In Ovations Holdings Acquires NBE Financial Network

These promoter mutations result in up regulation of the whiB7 regulon, leading to an increase in eis expression and resulting KAN resistance [12].

Molecular mechanisms of resistance to injectable agents in Mycobacterium tuberculosis