1RYX:
reference: Tertiary structural changes associated with iron binding and release in hen serum transferrin: a crystallographic and spectroscopic study., Thakurta PG, Choudhury D, Dasgupta R, Dattagupta JK, Biochem Biophys Res Commun 2004 Apr 16;316(4):1124-31. PMID: 15044101

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