1BSW:
reference: Crystal structures of acutolysin A, a three-disulfide hemorrhagic zinc metalloproteinase from the snake venom of Agkistrodon acutus., Gong W, Zhu X, Liu S, Teng M, Niu L, J Mol Biol 1998 Oct 30;283(3):657-68. PMID: 9784374

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