2W31:
reference: HisE11 and HisF8 Provide Bis-histidyl Heme Hexa-coordination in the Globin Domain of Geobacter sulfurreducens Globincoupled Sensor., Pesce A, Thijs L, Nardini M, Desmet F, Sisinni L, Gourlay L, Bolli A, Coletta M, Van Doorslaer S, Wan X, Alam M, Ascenzi P, Moens L, Bolognesi M, Dewilde S, J Mol Biol. 2008 Dec 16. PMID: 19109973

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