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Quickview   Gene   Gene Product(s)   Expression   Evolution   On One Page    
References Suggestions


Standard Name


Gene Synonym(s)

ECK1330, b1334, JW1328, nirA, nirR, ossA, oxrA[1][2]

Product Desc.

FNR transcriptional dual regulator[2][3]

Global transcription factor for anaerobic growth; [4FE-4S] cluster; homodimeric[4]

Product Synonyms(s)

DNA-binding transcriptional dual regulator, global regulator of anaerobic growth[1], B1334[2][1], Fnr[2][1], OssA[2][1], NirR[2][1], NirA[2][1], transcriptional regulation of aerobic, anaerobic respiration, osmotic balance[2][1], OxrA[2][1] , ECK1330, JW1328, nirA, nirR, ossA, b1334

Function from GO

<GO_nr />

Knock-Out Phenotype

transcription unit(s): fnr[2], OP00029

Quick Links

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FNR represses genes involved in aerobic respiration and activates genes required for anaerobic respiration.[4]


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  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Riley, M. et al. (2006) Nucleic Acids Res 34:1-6 (corrected supplemental data from B. Wanner)
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 EcoCyc (release 10.6; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
  3. EcoCyc (release 11.1; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
  4. 4.0 4.1 EcoGene: Rudd, KE (2000) EcoGene: a genome sequence database for Escherichia coli K-12. Nucleic Acids Res 28:60-4.