6WS1:
reference: Transition-State Analogues of Phenylethanolamine N-methyltransferase., Mahmoodi N, Harijan RK, Schramm VL, J Am Chem Soc. 2020 Jul 23. doi: 10.1021/jacs.0c05446. PMID: 32702980

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