3FD7:
reference: Impact of the C-terminal disulfide bond on the folding and stability of onconase., Schulenburg C, Weininger U, Neumann P, Meiselbach H, Stubbs MT, Sticht H, Balbach J, Ulbrich-Hofmann R, Arnold U, Chembiochem. 2010 May 3;11(7):978-86. PMID: 20349493

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