4INK:
reference: Biochemical and Structural Characterization of SplD Protease from Staphylococcus aureus., Zdzalik M, Kalinska M, Wysocka M, Stec-Niemczyk J, Cichon P, Stach N, Gruba N, Stennicke HR, Jabaiah A, Markiewicz M, Kedracka-Krok S, Wladyka B, Daugherty PS, Lesner A, Rolka K, Dubin A, Potempa J, Dubin G, PLoS One. 2013 Oct 9;8(10):e76812. doi: 10.1371/journal.pone.0076812. PMID: 24130791

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