GO Term : GO:0031556 transcriptional attenuation by ribosome GO

Namespace  biological_process Obsolete  false
description  A type of transcriptional regulation at the level of early termination. This process can occur only in prokaryotes, where transcription of an operon into messenger RNA and translation of that mRNA into polypeptides occur simultaneously. The general principle is that alternative mRNA secondary structures occur under different physiological conditions such as available amount of a particular amino acid. One set of conditions favors early termination of transcription. In the classic example of the trp biosynthesis operon, translation of the gene for a short, trp-containing polypeptide called the trp operon leader peptide pauses either at a trp codon (if tryptophan is scarce) or the stop codon (if trp is readily available). In the former situation transcription continues, but in the latter a Rho-independent terminator forms and reduces, or attenuates, expression of the tryptophan biosynthesis genes. Although the polypeptides encoded by leader peptide genes appear not to be stable once their translation is complete, it is suggested by recent studies that their nascent polypeptide chains interact specifically with ribosomes, specific uncharged tRNAs, or other cellular components to inhibit release at the stop codon and improve the function of transcriptional attenuation as a regulatory switch.

0 Cross References

1 Ontology

Name
GO

63 Parents

Identifier Name Description
GO:0006355 regulation of transcription, DNA-templated Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
GO:0008152 metabolic process The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
GO:0016070 RNA metabolic process The cellular chemical reactions and pathways involving RNA, ribonucleic acid, one of the two main type of nucleic acid, consisting of a long, unbranched macromolecule formed from ribonucleotides joined in 3',5'-phosphodiester linkage.
GO:0009058 biosynthetic process The chemical reactions and pathways resulting in the formation of substances; typically the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
GO:0006353 DNA-templated transcription, termination The cellular process that completes DNA-templated transcription; the formation of phosphodiester bonds ceases, the RNA-DNA hybrid dissociates, and RNA polymerase releases the DNA.
GO:0006351 transcription, DNA-templated The cellular synthesis of RNA on a template of DNA.
GO:0044237 cellular metabolic process The chemical reactions and pathways by which individual cells transform chemical substances.
GO:0006139 nucleobase-containing compound metabolic process Any cellular metabolic process involving nucleobases, nucleosides, nucleotides and nucleic acids.
GO:0071704 organic substance metabolic process The chemical reactions and pathways involving an organic substance, any molecular entity containing carbon.
GO:0006807 nitrogen compound metabolic process The chemical reactions and pathways involving organic or inorganic compounds that contain nitrogen, including (but not limited to) nitrogen fixation, nitrification, denitrification, assimilatory/dissimilatory nitrate reduction and the interconversion of nitrogenous organic matter and ammonium.
GO:0044249 cellular biosynthetic process The chemical reactions and pathways resulting in the formation of substances, carried out by individual cells.
GO:0010468 regulation of gene expression Any process that modulates the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA (for protein-coding genes) and the translation of that mRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
GO:0009059 macromolecule biosynthetic process The chemical reactions and pathways resulting in the formation of a macromolecule, any molecule of high relative molecular mass, the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass.
GO:0006725 cellular aromatic compound metabolic process The chemical reactions and pathways involving aromatic compounds, any organic compound characterized by one or more planar rings, each of which contains conjugated double bonds and delocalized pi electrons, as carried out by individual cells.
GO:0044238 primary metabolic process The chemical reactions and pathways involving those compounds which are formed as a part of the normal anabolic and catabolic processes. These processes take place in most, if not all, cells of the organism.
GO:0051252 regulation of RNA metabolic process Any process that modulates the frequency, rate or extent of the chemical reactions and pathways involving RNA.
GO:0044699 single-organism process A biological process that involves only one organism.
GO:0009987 cellular process Any process that is carried out at the cellular level, but not necessarily restricted to a single cell. For example, cell communication occurs among more than one cell, but occurs at the cellular level.
GO:0016043 cellular component organization A process that results in the assembly, arrangement of constituent parts, or disassembly of a cellular component.
GO:0071840 cellular component organization or biogenesis A process that results in the biosynthesis of constituent macromolecules, assembly, arrangement of constituent parts, or disassembly of a cellular component.
GO:0008150 biological_process Any process specifically pertinent to the functioning of integrated living units: cells, tissues, organs, and organisms. A process is a collection of molecular events with a defined beginning and end.
GO:0044763 single-organism cellular process Any process that is carried out at the cellular level, occurring within a single organism.
GO:0044260 cellular macromolecule metabolic process The chemical reactions and pathways involving macromolecules, any molecule of high relative molecular mass, the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass, as carried out by individual cells.
GO:0090304 nucleic acid metabolic process Any cellular metabolic process involving nucleic acids.
GO:0043170 macromolecule metabolic process The chemical reactions and pathways involving macromolecules, any molecule of high relative molecular mass, the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass.
GO:0046483 heterocycle metabolic process The chemical reactions and pathways involving heterocyclic compounds, those with a cyclic molecular structure and at least two different atoms in the ring (or rings).
GO:0034641 cellular nitrogen compound metabolic process The chemical reactions and pathways involving various organic and inorganic nitrogenous compounds, as carried out by individual cells.
GO:1901360 organic cyclic compound metabolic process The chemical reactions and pathways involving organic cyclic compound.
GO:0019219 regulation of nucleobase-containing compound metabolic process Any cellular process that modulates the frequency, rate or extent of the chemical reactions and pathways involving nucleobases, nucleosides, nucleotides and nucleic acids.
GO:0031323 regulation of cellular metabolic process Any process that modulates the frequency, rate or extent of the chemical reactions and pathways by which individual cells transform chemical substances.

0 Protein

63 Relations

Relationship
Parent Term . Identifier

Child Term . Identifier
is_a GO:0031555 GO:0031556
regulates GO:0008150 GO:0031556
regulates GO:0044271 GO:0031556
is_a GO:0019219 GO:0031556
regulates GO:0008152 GO:0031556
regulates GO:0006725 GO:0031556
regulates GO:0006139 GO:0031556
is_a GO:0050789 GO:0031556
regulates GO:0032774 GO:0031556
regulates GO:0044699 GO:0031556
regulates GO:1901360 GO:0031556
is_a GO:2000112 GO:0031556
is_a GO:0009889 GO:0031556
regulates GO:1901362 GO:0031556
is_a GO:0051252 GO:0031556
regulates GO:0022411 GO:0031556
regulates GO:0046483 GO:0031556
regulates GO:0097659 GO:0031556
is_a GO:0050794 GO:0031556
regulates GO:0071704 GO:0031556
regulates GO:0044260 GO:0031556
regulates GO:0009987 GO:0031556
regulates GO:0044238 GO:0031556
regulates GO:0006353 GO:0031556
regulates GO:1901576 GO:0031556
regulates GO:0044237 GO:0031556
regulates GO:0006351 GO:0031556
regulates GO:0071822 GO:0031556
regulates GO:0019438 GO:0031556
regulates GO:0043933 GO:0031556

1 Synonyms

Name Type
ribosome-mediated transcriptional attenuation synonym