title: An iron tetrahydroporphyrin prosthetic group common to both assimilatory and dissimilatory sulfite reductases.
mesh_terms: D001665:Binding Sites; D002248:Carbon Monoxide; D002845:Chromatography; D003901:Desulfovibrio / Q000201:enzymology*; D004578:Electron Spin Resonance Spectroscopy; D004926:Escherichia coli / Q000201:enzymology*; D007501:Iron / Q000032:analysis*; D010088:Oxidoreductases / Q000032:analysis*; D011166:Porphyrins / Q000032:analysis*; D011485:Protein Binding; D011487:Protein Conformation; D013045:Species Specificity; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D013447:Sulfites
chemical_list: D011166:Porphyrins; D013447:Sulfites; D002248:Carbon Monoxide; D007501:Iron; D010088:Oxidoreductases