3SKZ: Crystal Structure Of The 2'- Deoxyguanosine Riboswitch Bound Guanosine
reference: Structural principles of nucleoside selectivity in a 2'-deoxyguanosine riboswitch., Pikovskaya O, Polonskaia A, Patel DJ, Serganov A, Nat Chem Biol. 2011 Aug 14;7(10):748-55. doi: 10.1038/nchembio.631. PMID: 21841796

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