1TD1:
reference: Structures for the potential drug target purine nucleoside phosphorylase from Schistosoma mansoni causal agent of schistosomiasis., Pereira HD, Franco GR, Cleasby A, Garratt RC, J Mol Biol 2005 Oct 28;353(3):584-99. Epub 2005 Sep 2. PMID: 16182308

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