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Anal Biochem. 1983 Mar;129(2):517-21.

Separation of mammalian cytochrome c oxidase into 13 polypeptides by a sodium dodecyl sulfate-gel electrophoretic procedure.


A sodium dodecyl sulfate-gel electrophoretic procedure which allows the separation of isolated cytochrome c oxidase from different mammalian sources into 13 different polypeptides is described. Application of the silver-staining procedure results in the same protein pattern as obtained by Coomassie blue staining. From the correlation of the gel bands with 12 isolated polypeptides from which the complete amino acid sequence is known, it is concluded that mammalian cytochrome c oxidase consists of 13 different polypeptides which can all be separated by the described procedure.

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