2X2W:
reference: Two Crystal Structures of Escherichia coli N-Acetyl-l-Glutamate Kinase Demonstrate the Cycling between Open and Closed Conformations., Gil-Ortiz F, Ramon-Maiques S, Fernandez-Murga ML, Fita I, Rubio V, J Mol Biol. 2010 Apr 18. PMID: 20403363

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