5I90:
reference: 1.2 A resolution crystal structure of the periplasmic aminotransferase PvdN from Pseudomonas aeruginosa., Drake EJ, Gulick AM, Acta Crystallogr F Struct Biol Commun. 2016 May;72(Pt 5):403-8. doi:, 10.1107/S2053230X16006257. Epub 2016 Apr 22. PMID: 27139833

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