title: Oxidation state of binuclear iron site in azidosemimethemerythrin.
abstract: Electron paramagnetic resonance spectra of azidosemimethemerythrin (from Phascolopsis gouldii) have been integrated to find the total number of spins per monomer unit. The value observed, 1.0 +/- 0.1 spins per Fe2 pair, confirms the assignment of a hybrid oxidation state, FeIIFeIII, to each site.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002467:Cell Nucleus / Q000378:metabolism*; D004578:Electron Spin Resonance Spectroscopy; D006422:Hemerythrin / Q000031:analogs & derivatives / Q000378:metabolism*; D007501:Iron / Q000378:metabolism*; D008667:Metalloproteins / Q000378:metabolism*; D010084:Oxidation-Reduction
chemical_list: D006422:Hemerythrin; D008667:Metalloproteins; C037788:azidosemimethemerythrin; D007501:Iron