antitermination


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an·ti·ter·min·a·tion

(an'tē-ter-min-ā'shŭn),
A process of bacterial RNA polymerase wherein it is resistant to pause, arrest, or termination signals. It is an important control mechanism in the reproduction of some bacteriophages.
See also: hesitant, overdrive.

an·ti·ter·min·a·tion

(an'tē-tĕr-mi-nā'shŭn)
A state of bacterial RNA polymerase wherein it is resistant to pause, arrest, or termination signals.
See also: hesitant, overdrive

antitermination

a process in which RNA POLYMERASE does not recognize a normal TRANSCRIPTION termination signal at the end of a GENE or OPERON during transcription and so transcribes the DNA beyond the terminator. Antitermination provides a means of regulating the EXPRESSION of genes.
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References in periodicals archive ?
It also failed to mention the avoidance canon, or to acknowledge that its construction in any way tweaked the antitermination provision or deviated from the provision's most straightforward reading.
Upon annotation, they showed the presence of phage-associated genes in the proximity of vtx2f including those encoding the antitermination protein Q, the lysis protein S, a phage terminase, an integrase, and tail-assembly proteins.
The transcriptional machinery proteins ATP-dependent RNA helicase, DNA-dependent-RNA polymerase alpha subunit, RNA polymerase beta subunit transcription antitermination protein, and transcription elongation factor GreA were identified in the proteome dataset from either the mid-exponential phase or early stationary growth phase.
She explores how termination, or the policy to dissolve Indian tribal governments and their communally held territories and make Indians subject to the same laws as other Americans, defined "home" in the postwar discourse on race relations in America that saw reserves as "prison camps" and termination as "emancipation." In Southern California Indian Country two distinct interpretations of termination arose, as did two political grassroots organizations: pro- and antitermination. There was no middle ground for opinions, Daly argues: "Factionalism and familial fragmentation were very real consequences" of termination (428-29).
The life of phages is discussed in contributions on DNA packaging in double-stranded DNA phages, general aspects of lysogeny, gene regulatory circuitry of phage lambda, regulation of lambda gene expression by transcription termination and antitermination, and phage lysis.
Antitermination tribes managed to keep their lands under federal trust protection.
There was no middle ground for opinions regarding termination: you were either pro- or antitermination, and this resulted in fractures in family groups and factionalism between tribal relations.