Journal Article

Characterization of bacterial cytochrome cd<sub>1</sub>-nitrite reductase as one enzyme responsible for catalysis of nitrosation of secondary amines

Sylvie Calmels, Hiroshi Ohshima, Yann Henry and Helmut Bartsch

in Carcinogenesis

Volume 17, issue 3, pages 533-536
Published in print March 1996 | ISSN: 0143-3334
e-ISSN: 1460-2180 | DOI: https://dx.doi.org/10.1093/carcin/17.3.533
Characterization of bacterial cytochrome cd1-nitrite reductase as one enzyme responsible for catalysis of nitrosation of secondary amines

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Bacterial formation of carcinogenic N-nitroso compounds may play a role in the etiology of human cancer. Biochemical and immunological studies in denitrifying bacteria (Pseudomonas aeruginosa) strongly support the identification of cytochrome cd1-nitrite reductase as the enzyme responsible for the catalysis of nitrosation through the production of nitric oxide or NO+-like species. Interestingly, electron paramagnetic resonance studies have shown that large quantities of nitric oxide or NO+-like species were also produced by non-denitrifying enterobacteria (Escherichia coli, Proteus morganii).

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Subjects: Clinical Cytogenetics and Molecular Genetics

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