3LA5:
reference: Reengineering orthogonally selective riboswitches., Dixon N, Duncan JN, Geerlings T, Dunstan MS, McCarthy JE, Leys D, Micklefield J, Proc Natl Acad Sci U S A. 2010 Feb 16;107(7):2830-5. Epub 2010 Jan 26. PMID: 20133756

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