1B6I:
reference: Solid-state synthesis and mechanical unfolding of polymers of T4 lysozyme., Yang G, Cecconi C, Baase WA, Vetter IR, Breyer WA, Haack JA, Matthews BW, Dahlquist FW, Bustamante C, Proc Natl Acad Sci U S A 2000 Jan 4;97(1):139-44. PMID: 10618384

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