Sandbox Reserved 1578: Difference between revisions
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== Function == | == Function == | ||
Most responses to stimuli are mediated by transcription factors that in some way either turn on or off the production of their regulatory target. Genetic regulation by RNA is often used in bacterial cells. In the use of the SAM riboswitch the aptamer of tertiary RNA will bind to the SAM ligand where the helices and nucleotides discussed before hold the ligand in place for productive binding and also folds around the tertiary RNA once binding takes place. Stable binding of SAM when adequate amounts are present results in it acting as a transcriptional terminator which turns off gene expression. | Most responses to stimuli are mediated by transcription factors that in some way either turn on or off the production of their regulatory target. Genetic regulation by RNA is often used in bacterial cells. In the use of the SAM riboswitch the aptamer of tertiary RNA will bind to the SAM ligand where the helices and nucleotides discussed before hold the ligand in place for productive binding and also folds around the tertiary RNA once binding takes place. Stable binding of SAM when adequate amounts are present results in it acting as a transcriptional terminator which turns off gene expression. | ||
== References == | == References == | ||
