2NYN:
reference: Discovery of two cyanobacterial phenylalanine ammonia lyases: kinetic and structural characterization., Moffitt MC, Louie GV, Bowman ME, Pence J, Noel JP, Moore BS, Biochemistry. 2007 Jan 30;46(4):1004-12. PMID: 17240984

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