| 4XR5: reference: Structural investigation of the thymidine phosphorylase from Salmonella typhimurium in the unliganded state and its complexes with thymidine and uridine., Balaev VV, Lashkov AA, Gabdulkhakov AG, Dontsova MV, Seregina TA, Mironov AS, Betzel C, Mikhailov AM, Acta Crystallogr F Struct Biol Commun. 2016 Mar 1;72(Pt 3):224-33. doi:, 10.1107/S2053230X1600162X. Epub 2016 Feb 19. PMID: 26919527 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).