| 3PXZ: reference: Discovery of a potential allosteric ligand binding site in CDK2., Betzi S, Alam R, Martin MP, Lubbers DJ, Han H, Jakkaraj SR, Georg GI, Schonbrunn E, ACS Chem Biol. 2011 Feb 3. PMID: 21291269 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).