5EIX:
reference: Structure of a quinolone-stabilized cleavage complex of topoisomerase IV from Klebsiella pneumoniae and comparison with a related Streptococcus pneumoniae complex., Veselkov DA, Laponogov I, Pan XS, Selvarajah J, Skamrova GB, Branstrom A, Narasimhan J, Prasad JV, Fisher LM, Sanderson MR, Acta Crystallogr D Struct Biol. 2016 Apr 1;72(Pt 4):488-96. doi:, 10.1107/S2059798316001212. Epub 2016 Mar 24. PMID: 27050128

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