1OPZ:
reference: A core mutation affecting the folding properties of a soluble domain of the ATPase protein CopA from Bacillus subtilis., Banci L, Bertini I, Ciofi-Baffoni S, Gonnelli L, Su XC, J Mol Biol 2003 Aug 8;331(2):473-84. PMID: 12888353

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