Structural gene (nirS) for the cytochrome cd1 nitrite reductase of Alcaligenes eutrophus H16 | Zendy

E. Douglas Rees | Zendy; Roman A. Siddiqui | Zendy; Frank Köster | Zendy; B Schneider | Zendy; Bärbel Friedrich | Zendy

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Structural gene (nirS) for the cytochrome cd1 nitrite reductase of Alcaligenes eutrophus H16

Author(s) -

E. Douglas Rees,

Roman A. Siddiqui,

Frank Köster,

B Schneider,

Bärbel Friedrich

Publication year - 1997

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.63.2.800-802.1997

Subject(s) - nitrite reductase , biochemistry , nitrite , biology , reductase , alcaligenes , denitrification , periplasmic space , structural gene , gene , cytochrome , enzyme , chemistry , genetics , escherichia coli , bacteria , nitrate reductase , nitrate , pseudomonas , ecology , organic chemistry , nitrogen

Denitrification by Alcaligenes eutrophus H16 is genetically linked to megaplasmid pHG1. Unexpectedly, the gene encoding the nitrite reductase (nirS) was identified on chromosomal DNA. The nirS product showed extensive homology with periplasmic nitrite reductases of the heme cd1-type. Disruption of nirS abolished nitrite-reducing ability, indicating that NirS is the enzyme essential for denitrification in A.eutrophus.

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