The RtT RNA (repeat structure of the ''tyrT'' operon)
is a
RNA element that is released from the ''tyrT''
operon
In genetics, an operon is a functioning unit of DNA containing a cluster of genes under the control of a single promoter. The genes are transcribed together into an mRNA strand and either translated together in the cytoplasm, or undergo splic ...
of ''
Escherichia coli
''Escherichia coli'' (),Wells, J. C. (2000) Longman Pronunciation Dictionary. Harlow ngland Pearson Education Ltd. also known as ''E. coli'' (), is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus ''Escher ...
''. 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
Amino acids are organic compounds that contain both amino and carboxylic acid functional groups. Although hundreds of amino acids exist in nature, by far the most important are the alpha-amino acids, which comprise proteins. Only 22 alpha am ...
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.
References
External links
*
Cis-regulatory RNA elements
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