2I5B:
reference: The Crystal Structure of an ADP Complex of Bacillus subtilis Pyridoxal Kinase Provides Evidence for the Parallel Emergence of Enzyme Activity During Evolution., Newman JA, Das SK, Sedelnikova SE, Rice DW, J Mol Biol. 2006 Oct 20;363(2):520-30. Epub 2006 Aug 12. PMID: 16978644

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