1I4Y:
reference: The crystal structures of Phascolopsis gouldii wild type and L98Y methemerythrins: structural and functional alterations of the O2 binding pocket., Farmer CS, Kurtz DM Jr, Liu ZJ, Wang BC, Rose J, Ai J, Sanders-Loehr J, J Biol Inorg Chem 2001 Apr;6(4):418-29. PMID: 11372200

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