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  • Title: The cytochrome c domain of dimeric cytochrome cd(1) of Paracoccus pantotrophus can be produced at high levels as a monomeric holoprotein using an improved c-type cytochrome expression system in Escherichia coli.
    Author: Gordon EH, Steensma E, Ferguson SJ.
    Journal: Biochem Biophys Res Commun; 2001 Mar 02; 281(3):788-94. PubMed ID: 11237728.
    Abstract:
    Cytochrome cd(1) nitrite reductase from Paracoccus pantotrophus is a dimer; within each monomer there is a largely alpha-helical domain that contains the c-type cytochrome centre. The structure of this domain changes significantly upon reduction of the heme iron, for which the ligands change from His17/His69 to Met106/His69. Overproduction, using an improved Escherichia coli expression system, of this c-type cytochrome domain as an independent monomer is reported here. The properties of the independent domain are compared with those when it is part of dimeric holo or semi-apo cytochrome cd(1).
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