2YCL:
reference: Structural Basis for Electron and Methyl-Group Transfer in a Methyltransferase System Operating in the Reductive Acetyl-CoA Pathway., Goetzl S, Jeoung JH, Hennig SE, Dobbek H, J Mol Biol. 2011 Aug 5;411(1):96-109. Epub 2011 May 27. PMID: 21640123

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