1HNE:
reference: Structure of human neutrophil elastase in complex with a peptide chloromethyl ketone inhibitor at 1.84-A resolution., Navia MA, McKeever BM, Springer JP, Lin TY, Williams HR, Fluder EM, Dorn CP, Hoogsteen K, Proc Natl Acad Sci U S A 1989 Jan;86(1):7-11. PMID: 2911584

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