1B0C:
reference: The BPTI decamer observed in acidic pH crystal forms pre-exists as a stable species in solution., Hamiaux C, Perez J, Prange T, Veesler S, Ries-Kautt M, Vachette P, J Mol Biol 2000 Mar 31;297(3):697-712. PMID: 10731422

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