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. 1972 Sep;129(3):755-61.
doi: 10.1042/bj1290755.

The oxidation of nicotinic acid by Pseudomonas ovalis Chester. The terminal oxidase

M V Jones, D E Hughes

The oxidation of nicotinic acid by Pseudomonas ovalis Chester. The terminal oxidase

M V Jones et al. Biochem J. 1972 Sep.

Abstract

In cell-free extracts of Pseudomonas ovalis nicotinic acid oxidase is confined to the wallmembrane fraction. It is associated with an electron-transport chain comprising b- and c-type cytochromes only, differing proportions of which are reduced by nicotinate and NADH. CO difference-spectra show two CO-binding pigments, cytochrome o (absorption maximum at 417nm) and another component absorbing maximally at 425nm. Cytochrome o is not reduced by NADH or by succinate but is by nicotinate, which can also reduce the ;425' CO-binding pigment. The effects of inhibitors of terminal oxidation support the idea of two terminal oxidases and a scheme involving the ;425' CO-binding pigment and the other components of the electron-transport chain is proposed.

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References

    1. Biochem J. 1959 May;72(1):1-7 - PubMed
    1. Plant Physiol. 1967 Mar;42(3):366-70 - PubMed
    1. J Bacteriol. 1970 Sep;103(3):714-21 - PubMed
    1. Biochim Biophys Acta. 1967 Sep 6;143(2):340-53 - PubMed
    1. Biochem J. 1971 Nov;125(2):449-59 - PubMed