title: The protein formula of beef heart cytochrome c oxidase.
abstract: Beef heart cytochrome c oxidase consist of 12 different polypeptides stoichiometrically arranged in respiratory complex IV. The functional 2 heme a, 2 copper monomer of this complex consist of 1793 amino acids; the exact Mr is 202,787 Da. From 17 cysteine residues, six are involved in the formation of three disulphide bonds. The theoretical heme a content of the enzyme is 9.86 nmol/mg protein. The theoretical iron and copper contents are 0.55 and 0.63 microgram/mg protein, respectively.
authors.forename: G
authors.initials: G
authors.lastname: Buse
authors.forename: L
authors.initials: L
authors.lastname: Meinecke
authors.forename: B
authors.initials: B
authors.lastname: Bruch
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002417:Cattle; D003300:Copper / Q000032:analysis; D003545:Cysteine / Q000032:analysis; D003576:Electron Transport Complex IV / Q000032:analysis*; D006418:Heme / Q000031:analogs & derivatives / Q000032:analysis; D007501:Iron / Q000032:analysis; D009206:Myocardium / Q000201:enzymology; D010455:Peptides / Q000032:analysis
chemical_list: D000596:Amino Acids; D010455:Peptides; C027728:heme a; D006418:Heme; D003300:Copper; D007501:Iron; D003576:Electron Transport Complex IV; D003545:Cysteine