5IEX:
reference: Conformational Adaption May Explain the Slow Dissociation Kinetics of Roniciclib (BAY 1000394), a Type I CDK Inhibitor with Kinetic Selectivity for CDK2 and CDK9., Ayaz P, Andres D, Kwiatkowski DA, Kolbe CC, Lienau P, Siemeister G, Lucking U, Stegmann CM, ACS Chem Biol. 2016 Apr 19. PMID: 27090615

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