2IE8:
reference: Crystal structure of Thermus caldophilus phosphoglycerate kinase in the open conformation., Lee JH, Im YJ, Bae J, Kim D, Kim MK, Kang GB, Lee DS, Eom SH, Biochem Biophys Res Commun. 2006 Dec 1;350(4):1044-9. Epub 2006 Oct 6. PMID: 17045964

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