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Standard Name


Gene Synonym(s)

ECK4175, b4179, JW5741, vacB, yjeC[1], yjeC

Product Desc.

EG11259- Exoribonuclease R; specifically required for SsrA-SmpB-dependent decay of non-stop aberrant mRNAs (Richards, 2006)[2]

Product Synonyms(s)

exoribonuclease R, RNase R[1], B4179[3][1], YjeC[3][1], Rnr[3][1], VacB[3][1] , ECK4175, JW5741, vacB, yjeC, b4179

Function from GO

Molecular Function

Knock-Out Phenotype

transcription unit(s): nsrR-rnr-rlmB[3]

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rnr is transiently induced after a cold shock. rnr is orthologous with Shigella virulence gene vacB.[2]


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  1. 1.0 1.1 1.2 1.3 1.4 1.5 Riley, M. et al. (2006) Nucleic Acids Res 34:1-6 (corrected supplemental data from B. Wanner)
  2. 2.0 2.1 EcoGene: Rudd, KE (2000) EcoGene: a genome sequence database for Escherichia coli K-12. Nucleic Acids Res 28:60-4.
  3. 3.0 3.1 3.2 3.3 3.4 EcoCyc (release 10.6; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7