4GPY:
reference: Crystal Structures of a Bioactive 6'-Hydroxy Variant of Sisomicin Bound to the Bacterial and Protozoal Ribosomal Decoding Sites., Kondo J, Koganei M, Maianti JP, Ly VL, Hanessian S, ChemMedChem. 2013 Feb 21. doi: 10.1002/cmdc.201200579. PMID: 23436717

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