Due to their primary role as RBSs, 5' UTRs are subject to a wide variety of translational regulation mechanisms.
Attenuators and riboswitches are long 5' UTRs subject to complex and varied regulations highly dependent on RNA secondary structure for their function. Many sRNAs also target one or more 5' UTRs. This subTopic collects various long and structured UTRs that do not fall into other subTopics.
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