2RDL:
reference: Structural basis for elastolytic substrate specificity in rodent alpha -chymases., Kervinen J, Abad M, Crysler C, Kolpak M, Mahan AD, Masucci JA, Bayoumy S, Cummings MD, Yao X, Olson M, de Garavilla L, Kuo L, Deckman I, Spurlino J, J Biol Chem. 2007 Oct 31;. PMID: 17981788

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