6CM4:
reference: Structure of the D2 dopamine receptor bound to the atypical antipsychotic drug risperidone., Wang S, Che T, Levit A, Shoichet BK, Wacker D, Roth BL, Nature. 2018 Jan 24. pii: nature25758. doi: 10.1038/nature25758. PMID: 29466326

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