5W6O:
reference: Identification of a Unique Inhibitor-Binding Site on Choline Kinase alpha., Kall SL, Delikatny EJ, Lavie A, Biochemistry. 2018 Feb 8. doi: 10.1021/acs.biochem.7b01257. PMID: 29389115

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