4M5M:
reference: The identification, analysis and structure-based development of novel inhibitors of 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase., Yun MK, Hoagland D, Kumar G, Waddell MB, Rock CO, Lee RE, White SW, Bioorg Med Chem. 2014 Apr 1;22(7):2157-65. doi: 10.1016/j.bmc.2014.02.022. Epub, 2014 Feb 25. PMID: 24613625

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