4LS9:
reference: Unique subunit packing in mycobacterial nanoRNase leads to alternate substrate recognitions in DHH phosphodiesterases., Srivastav R, Kumar D, Grover A, Singh A, Manjasetty BA, Sharma R, Taneja B, Nucleic Acids Res. 2014 Aug 1;42(12):7894-910. doi: 10.1093/nar/gku425. Epub 2014, May 30. PMID: 24878921

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