1AQF:
reference: Ligand-induced domain movement in pyruvate kinase: structure of the enzyme from rabbit muscle with Mg2+, K+, and L-phospholactate at 2.7 A resolution., Larsen TM, Benning MM, Wesenberg GE, Rayment I, Reed GH, Arch Biochem Biophys 1997 Sep 15;345(2):199-206. PMID: 9308890

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