Heme b (animated example) Back Image kitt-supercar Download Metadata Metal Iron CategoryHeme ProteinsNameHeme b (animated example)Metal CoordinationOctahedralLigandsHisMetal OxidationFe3+ | Fe2+Spin StatesS=1/2 | S=0Spectroscopic Fingerprint ID_01 Technique EPR | ID_04 Technique RR | ID_03 Technique NMR Example Accession Cytochrome b562 Attachments heme_b His_PDB_2QSS His_PDB_5D5R