1RDD:
reference: Crystal structure of Escherichia coli RNase HI in complex with Mg2+ at 2.8 A resolution: proof for a single Mg(2+)-binding site., Katayanagi K, Okumura M, Morikawa K, Proteins 1993 Dec;17(4):337-46. PMID: 8108376

This OCA Structure page
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