1R18:
reference: Catalytic implications from the Drosophila protein L-isoaspartyl methyltransferase structure and site-directed mutagenesis., Bennett EJ, Bjerregaard J, Knapp JE, Chavous DA, Friedman AM, Royer WE Jr, O'Connor CM, Biochemistry 2003 Nov 11;42(44):12844-53. PMID: 14596598

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