4NFI:
reference: Crystallographic and thermodynamic characterization of phenylaminopyridine bisphosphonates binding to human farnesyl pyrophosphate synthase., Park J, Rodionov D, De Schutter JW, Lin YS, Tsantrizos YS, Berghuis AM, PLoS One. 2017 Oct 16;12(10):e0186447. doi: 10.1371/journal.pone.0186447., eCollection 2017. PMID: 29036218

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