4IN9:
reference: Structure of the catalytic domain of the Tannerella forsythia matrix metallopeptidase karilysin in complex with a tetrapeptidic inhibitor., Guevara T, Ksiazek M, Skottrup PD, Cerda-Costa N, Trillo-Muyo S, de Diego I, Riise E, Potempa J, Gomis-Ruth FX, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2013 May;69(Pt 5):472-6. doi:, 10.1107/S1744309113007392. Epub 2013 Apr 27. PMID: 23695557

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