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.

Farlex Partner Medical Dictionary © Farlex 2012

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

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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.

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

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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.

Passive Avoidance

ANTAR: an RNA-binding domain in transcription antitermination regulatory proteins.

Regulation of Streptomyces Chitinases by Two-Component Signal Transduction Systems and their Post Translational Modifications: A Review

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.

Whole-genome characterization and strain comparison of VT2f-producing escherichia coli causing hemolytic uremic syndrome

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.

Growth phase-dependent proteomes of the Malaysian isolated Lactococcus lactis dairy strain M4 using label-free qualitative shotgun proteomics analysis

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).

Guest editors' remarks

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.

The Bacteriophages, 2d ed

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.

Fractured relations at home: the 1953 Termination Act's Effect on Tribal Relations throughout Southern California Indian Country