1SP7:
reference: Determination of a high-precision NMR structure of the minicollagen cysteine rich domain from Hydra and characterization of its disulfide bond formation., Meier S, Haussinger D, Pokidysheva E, Bachinger HP, Grzesiek S, FEBS Lett 2004 Jul 2;569(1-3):112-6. PMID: 15225618

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