Transcriptional analysis of the nirS gene, encoding cytochrome cd (sub)1 nitrite reductase, of Paracoccus pantotrophus LMD 92.63

Article Abstract:

Research has been conducted on the nirS gene for Paracoccus pantotrophus cytochrome cd (sub)1 nitrite reductase. The determination of the gene transcription start site and the length of nirS promoter transcripts are discussed.

Genetic transcription, Transcription (Genetics), Nitrites, Microbiological research, Denitrification

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Control of periplasmic nitrate reductase gene expression (napEDABC) from Paracoccus pantotrophus in response to oxygen and carbon substrates

Article Abstract:

Results point out that transcription of the periplasmic nitrate reductase gene is under the control of two initiation sites that are differentially regulated depending on the carbon source. Cells grow aerobically in the presence of highly reduced carbon source but oxidized substrates are inhibitory indicating a negative regulation during anaerobiosis.

Physiological aspects, Oxygen, Anaerobiosis, Gene expression, Nitrogen metabolism, Carbon compounds

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Mutational analysis of the Paracoccus denitrificans c-type cytochrome biosynthetic genes ccmABCDG: disruption of ccmC has distinct effects suggesting a role for CcmC independent of CcmAB

Article Abstract:

Research was conducted to examine the biogenesis of a c-type cytochrome (ccmC) gene in Paracoccus denitrificans by gene mutational analysis. Results show that ccmC is independent of the other four ccm genes and its disruption attentuates siderophore biosynthesis.

Methods, Gene mutations, Gene mutation, Observations, Gram-negative bacteria, Adenosine triphosphate, ATP, Complementation (Genetics)

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