2D1N:
reference: Crystal structures of the catalytic domain of human stromelysin-1 (MMP-3) and collagenase-3 (MMP-13) with a hydroxamic acid inhibitor SM-25453., Kohno T, Hochigai H, Yamashita E, Tsukihara T, Kanaoka M, Biochem Biophys Res Commun. 2006 May 26;344(1):315-22. Epub 2006 Mar 27. PMID: 16603129

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