5MLX:
reference: Crystal structure analysis, covalent docking, and molecular dynamics calculations reveal a conformational switch in PhaZ7 PHB depolymerase., Kellici TF, Mavromoustakos T, Jendrossek D, Papageorgiou AC, Proteins. 2017 Apr 3. doi: 10.1002/prot.25296. PMID: 28370478

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