5H7E:
reference: Crystal structure of the RNA 2',3'-cyclic phosphodiesterase from Deinococcus radiodurans., Han W, Cheng J, Zhou C, Hua Y, Zhao Y, Acta Crystallogr F Struct Biol Commun. 2017 May 1;73(Pt 5):276-280. doi:, 10.1107/S2053230X17004964. Epub 2017 Apr 26. PMID: 28471359

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