| 1PK2: reference: Solution structure of the tissue-type plasminogen activator kringle 2 domain complexed to 6-aminohexanoic acid an antifibrinolytic drug., Byeon IJ, Llinas M, J Mol Biol 1991 Dec 20;222(4):1035-51. PMID: 1762144 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).