rtT RNA

{{Infobox rfam

| Name = RtT RNA

| image = RF00391.jpg

| width =

| caption = Predicted secondary structure and sequence conservation of RtT

| Symbol = RtT

| AltSymbols =

| Rfam = RF00391

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| RNA_type = Cis-reg

| Tax_domain = Bacteria

| GO =

| SO = {{SO|0000655}}

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| PDB =

| RefSeq =

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}}

The RtT RNA (repeat structure of the tyrT operon){{cite journal | vauthors = Bösl M, Kersten H | title = A novel RNA product of the tyrT operon of Escherichia coli | journal = Nucleic Acids Research | volume = 19 | issue = 21 | pages = 5863–70 | date = November 1991 | pmid = 1840671 | pmc = 329039 | doi = 10.1093/nar/19.21.5863 }} is a RNA element that is released from the tyrT operon of Escherichia coli. The exact function of RtT is unknown although it is thought that it may be involved in changing the cellular response in relation to amino acid starvation.

The functional prediction is strengthened when the tyrT locus of E. coli K12 is compared with the B strain, which lacks RtT RNA and has an alternate starvation response.{{cite journal | vauthors = Timms AR, Bridges BA | title = The tyrT locus of Escherichia coli B | journal = Journal of Bacteriology | volume = 178 | issue = 8 | pages = 2469–70 | date = April 1996 | doi = 10.1128/jb.178.8.2469-2470.1996 | pmid = 8636060 | pmc = 177967 }}