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Article

Role of ribosome release in regulation of tna operon expression in Escherichia coli.

Journal of bacteriology - 1 Mar 1999

Konan K V, Yanofsky C

Abstract excerpt

Expression of the degradative tryptophanase (tna) operon of Escherichia coli is regulated by catabolite repression and tryptophan-induced transcription antitermination. In cultures growing in the absence of added tryptophan, transcription of the structural genes of the tna operon is limited by Rho-dependent transcription termination in the leader region of the operon. Tryptophan induction prevents this...

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Methodology Data sources Editorial policy Privacy Delete account & data About Contact Helena Bioinformatics

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Identifiers

PMID: 10049385
DOI: 10.1128/JB.181.5.1530-1536.1999
PMCID: PMC93543

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

Related research

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Research trail→

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Role of ribosome release in regulation of tna operon expression in Escherichia coli.PMID 10049385Read ↗

Loss of overproduction of polypeptide release factor 3 influences expression of the tryptophanase operon of Escherichia coli.Semantic proximity Read ↗

Inhibition of expression of the tryptophanase operon in Escherichia coli by extrachromosomal copies of the tna leader region.Semantic proximity Read ↗

tRNA(Trp) translation of leader peptide codon 12 and other factors that regulate expression of the tryptophanase operon.Semantic proximity Read ↗

Role of ribosome release in the basal level of expression of the Escherichia coli gene pheA.Semantic proximity Read ↗

The Bacillus subtilis TRAP protein can induce transcription termination in the leader region of the tryptophan biosynthetic (trp) operon independent of the trp attenuator RNA.Semantic proximity Read ↗

Features of ribosome-peptidyl-tRNA interactions essential for tryptophan induction of tna operon expression.Semantic proximity Read ↗

The RNA antiterminator causes transcription pausing in the leader region of the tryptophan operon.Semantic proximity Read ↗

trp RNA-binding attenuation protein (TRAP)-trp leader RNA interactions mediate translational as well as transcriptional regulation of the Bacillus subtilis trp operon.Semantic proximity Read ↗

Physiological studies of tryptophan transport and tryptophanase operon induction in Escherichia coli.Semantic proximity Read ↗

Replacement of the Escherichia coli trp operon attenuation control codons alters operon expression.Semantic proximity Read ↗

Crucial elements that maintain the interactions between the regulatory TnaC peptide and the ribosome exit tunnel responsible for Trp inhibition of ribosome function.Semantic proximity Read ↗

Interactions of the TnaC nascent peptide with rRNA in the exit tunnel enable the ribosome to respond to free tryptophan.Semantic proximity Read ↗

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