5ZFH:
reference: Structure-based drug design to overcome species differences in kallikrein 7 inhibition of 1,3,6-trisubstituted 1,4-diazepan-7-ones., Murafuji H, Sugawara H, Goto M, Oyama Y, Sakai H, Imajo S, Tomoo T, Muto T, Bioorg Med Chem. 2018 Jul 23;26(12):3639-3653. doi: 10.1016/j.bmc.2018.05.044., Epub 2018 May 26. PMID: 29884582

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