5YKB:
reference: The N253F mutant structure of trehalose synthase from Deinococcus radiodurans reveals an open active-site topology., Chow SY, Wang YL, Hsieh YC, Lee GC, Liaw SH, Acta Crystallogr F Struct Biol Commun. 2017 Nov 1;73(Pt 11):588-594. doi:, 10.1107/S2053230X17014303. Epub 2017 Oct 20. PMID: 29095151

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