Qrr RNA (original) (raw)
Qrr (Quorum regulatory RNA) is a non-coding RNA that is thought to be involved in the regulation of quorum sensing in Vibrio species. It is believed that these RNAs, guided by a protein, Hfq, can mediate the destabilisation of the quorum-sensing master regulators LuxR/HapR/VanT mRNAs. There are 5 different qrr genes (Qrr1–5) in V. harveyi; of these, qrr2, 3 and 4 are activated by LuxR.
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| dbo:abstract | Qrr (Quorum regulatory RNA) is a non-coding RNA that is thought to be involved in the regulation of quorum sensing in Vibrio species. It is believed that these RNAs, guided by a protein, Hfq, can mediate the destabilisation of the quorum-sensing master regulators LuxR/HapR/VanT mRNAs. Qrr operates as part of a negative feedback loop which regulates the shift in cell state from that of low density populations to that in high density populations. In Vibrio harveyi, Qrr binds and represses expression of the luxR mRNA transcript, a master regulator of quorum-sensing genes. At higher population densities, increased autoinducer concentration leads to termination of qrr transcription hence derepression of luxR. There are 5 different qrr genes (Qrr1–5) in V. harveyi; of these, qrr2, 3 and 4 are activated by LuxR. (en) |
| dbo:thumbnail | wiki-commons:Special:FilePath/RF00378.jpg?width=300 |
| dbo:wikiPageID | 11421384 (xsd:integer) |
| dbo:wikiPageLength | 3927 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1032051970 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:MRNA dbr:Vibrio_harveyi dbc:Non-coding_RNA dbr:Protein dbr:Quorum_sensing dbr:Hfq_protein dbr:Autoinducer dbr:Negative_feedback dbr:Vibrio dbr:Non-coding_RNA |
| dbp:altsymbols | Qrr1–5 (en) |
| dbp:id | RF00378 (en) |
| dbp:name | Qrr RNA (en) Quorum regulatory RNA (en) |
| dbp:rfam | RF00378 (en) |
| dbp:rnaType | sRNA (en) |
| dbp:symbol | Qrr (en) |
| dbp:taxDomain | Vibrio (en) |
| dbp:width | 270 (xsd:integer) |
| dbp:wikiPageUsesTemplate | dbt:Cite_journal dbt:Reflist dbt:Short_description dbt:Infobox_rfam dbt:Rfam |
| dcterms:subject | dbc:Non-coding_RNA |
| gold:hypernym | dbr:RNA |
| rdf:type | dbo:Protein |
| rdfs:comment | Qrr (Quorum regulatory RNA) is a non-coding RNA that is thought to be involved in the regulation of quorum sensing in Vibrio species. It is believed that these RNAs, guided by a protein, Hfq, can mediate the destabilisation of the quorum-sensing master regulators LuxR/HapR/VanT mRNAs. There are 5 different qrr genes (Qrr1–5) in V. harveyi; of these, qrr2, 3 and 4 are activated by LuxR. (en) |
| rdfs:label | Qrr RNA (en) |
| owl:sameAs | freebase:Qrr RNA wikidata:Qrr RNA https://global.dbpedia.org/id/4tsUt |
| prov:wasDerivedFrom | wikipedia-en:Qrr_RNA?oldid=1032051970&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/RF00378.jpg |
| foaf:isPrimaryTopicOf | wikipedia-en:Qrr_RNA |
| is dbo:wikiPageWikiLink of | dbr:Vibrio_cholerae_ToxT_activated_RNAs dbr:Hfq_binding_sRNA dbr:Bacterial_small_RNA dbr:Vibrio |
| is foaf:primaryTopic of | wikipedia-en:Qrr_RNA |
