1DE6:
reference: The structure of rhamnose isomerase from Escherichia coli and its relation with xylose isomerase illustrates a change between inter and intra-subunit complementation during evolution., Korndorfer IP, Fessner WD, Matthews BW, J Mol Biol 2000 Jul 21;300(4):917-33. PMID: 10891278

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