title: Differences in quaternary structure and constitutive chains between two homologous forms of cytochrome b 2  (L-lactate: cytochrome c oxidoreductase).
mesh_terms: D002850:Chromatography, Gel; D003576:Electron Transport Complex IV / Q000032:analysis*; D004589:Electrophoresis, Disc; D004592:Electrophoresis, Starch Gel; D046911:Macromolecular Substances; D008970:Molecular Weight; D011489:Protein Denaturation; D012441:Saccharomyces cerevisiae / Q000201:enzymology; D012967:Sodium Dodecyl Sulfate; D014461:Ultracentrifugation; D014508:Urea; D015003:Yeasts / Q000201:enzymology
chemical_list: D046911:Macromolecular Substances; D012967:Sodium Dodecyl Sulfate; D014508:Urea; D003576:Electron Transport Complex IV