4PZ9:
reference: Mechanism of dephosphorylation of glucosyl-3-phosphoglycerate by a histidine phosphatase., Zheng Q, Jiang D, Zhang W, Zhang Q, Zhao Q, Jin J, Li X, Yang H, Bartlam M, Shaw N, Zhou W, Rao Z, J Biol Chem. 2014 Aug 1;289(31):21242-51. doi: 10.1074/jbc.M114.569913. Epub 2014, Jun 9. PMID: 24914210

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