operon


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operon

 [op´er-on]
a segment of a chromosome comprising an operator gene and closely linked structural genes having related functions, the activity of the latter being controlled by the operator gene through its interaction with a regulator gene.

op·er·on

(op'ĕr-on),
A genetic functional unit that controls production of a messenger RNA; it consists of an operator gene and two or more structural genes located in sequence in the cis position on one chromosome.
[L. operor, to work, act, + -on]

operon

/op·er·on/ (op´er-on) a segment of a chromosome comprising an operator gene and closely linked structural genes having related functions.

operon

(ŏp′ə-rŏn′)
n.
A unit of genetic material that functions in a coordinated manner by means of an operator, a promoter, and one or more structural genes that are transcribed together.

operon

[op′əron]
Etymology: L, operare, to work
a section of bacterial DNA consisting of an operator gene and one or more structural genes with related functions. Transcription of the structural genes is controlled by the operator gene in conjunction with a regulator gene. See also operator gene, regulator gene.

operon

A row of consecutive genes on a chromosome that operates as a functional unit. The structural genes in the operon are preceded by two regulatory sites occupied by regulatory genes, the promoter and the operator. These are essential for the expression of the operon. The genes in an operon have related functions that occur sequentially. All the genes in the operon are turned on and off together. All are transcribed into one large segment of MESSENGER RNA.

operon

a genetic unit comprising a set of structural genes that is coordinately expressed. see OPERON MODEL.

op·er·on

(op'ĕr-on)
A genetic functional unit that controls production of a messenger RNA.

operon (op´əron´),

n a segment of DNA consisting of an operator gene and one or more structural genes with related functions controlled by the operator gene in conjunction with a regulator gene.

operon

a segment of a chromosome comprising an operator gene and closely linked structural genes having related functions, the activity of the latter being controlled by the operator gene through its interaction with a regulator gene.
References in periodicals archive ?
pneumoniae is correlated with reduced ability of turning ON of fim operon expression via PV.
Like in other enteric systems, flagellar class-II regulatory proteins, such as sigma factor flagellar operon FliA (RWLH00697, RWLH043 30) and negative regulator of flagellin synthesis FlgM (RWLH04307, RWLH05330), were identified.
butyricum VPI1718 operon, it has been postulated that the regulator genes of the 1,3-PD operon of Clostridium sp.
In addition to sharing its module with about a dozen clients, Operon put it in the hands of high schools and colleges that are preparing students for the workplace.
Use of the tna Operon as a New Molecular Target for Escherichia coli Detection.
Por su parte, el operon sol tiene corriente arriba de su promotor, una caja 0A.
One regulation target of Dan is the ttd operon encoding L-tartrate dehydratase and the L-tartrate:succinate antiporter.
Transcription of the dhb operon was found to be controlled by a single sA-dependent promoter that was comprised of a fur box-binding site, an iron regulatory element while the three dhb genes encoding the synthetases for the assembly of BB were resided in one operon [21].
Desde el punto de vista genetico, la bomba MexXY es muy particular ya que el operon que la codifica no posee un gen para la produccion de una porina.
El gen cvaC se encuentra dentro del operon ColV y sintetiza a la colicina V, proteina pequena que interfiere con la formacion del potencial de membrana requerido para la produccion de energia (Johnson et al.