6F5M:
reference: Crystal structure of highly glycosylated human leukocyte elastase in complex with an S2' site binding inhibitor., Hochscherf J, Pietsch M, Tieu W, Kuan K, Abell AD, Gutschow M, Niefind K, Acta Crystallogr F Struct Biol Commun. 2018 Aug 1;74(Pt 8):480-489. doi:, 10.1107/S2053230X1800537X. Epub 2018 Jul 26. PMID: 30084397

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