3AT6:
reference: Side-necked turtle (Pleurodira, Chelonia, reptilia) hemoglobin: cDNA-derived primary structures and X-ray crystal structures of Hb A., Hasegawa T, Shishikura F, Kuwada T, IUBMB Life. 2011 Mar;63(3):188-96. doi: 10.1002/iub.429. PMID: 21445850

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