2HW4:
reference: First structure of a eukaryotic phosphohistidine phosphatase., Busam RD, Thorsell AG, Flores A, Hammarstrom M, Persson C, Hallberg BM, J Biol Chem. 2006 Nov 10;281(45):33830-4. Epub 2006 Sep 21. PMID: 16990267

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).