3VN5:
reference: Structure and characterization of RNase H3 from Aquifex aeolicus., Jongruja N, You DJ, Angkawidjaja C, Kanaya E, Koga Y, Kanaya S, FEBS J. 2012 Aug;279(15):2737-53. doi: 10.1111/j.1742-4658.2012.08657.x. Epub, 2012 Jul 3. PMID: 22686566

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