1FAW:
reference: The structure of greylag goose oxy haemoglobin: the roles of four mutations compared with bar-headed goose haemoglobin., Liang YH, Liu XZ, Liu SH, Lu GY, Acta Crystallogr D Biol Crystallogr 2001 Dec;57(Pt 12):1850-6. PMID: 11717498

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