4ORK:
reference: Structure of the phosphotransferase domain of the bifunctional aminoglycoside-resistance enzyme AAC(6')-Ie-APH(2'')-Ia., Smith CA, Toth M, Bhattacharya M, Frase H, Vakulenko SB, Acta Crystallogr D Biol Crystallogr. 2014 Jun;70(Pt 6):1561-71. doi:, 10.1107/S1399004714005331. Epub 2014 May 23. PMID: 24914967

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