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Standard Name


Gene Synonym(s)

yccR, ECK0950, b0959, JW0942[1][2], JW0942, tfoX

Product Desc.

conserved protein[3]; transcriptional coactivator for CRP[2]

Required for expression of CRP-S-dependent promoters; characterized in H. influenzae as a gene required for competence[4]

Product Synonyms(s)

conserved protein[1], B0959[3][1], YccR[3][1], Sxy[2][1] , ECK0950, JW0942, tfoX, yccR, b0959

Function from GO
Knock-Out Phenotype

transcription unit(s): yccR[3]

Quick Links

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CRP-S are specialized CRP-dependent promoters that also require the Sxy gene product for expression (Cameron, 2006).[4]


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  1. 1.0 1.1 1.2 1.3 1.4 Riley, M. et al. (2006) Nucleic Acids Res 34:1-6 (corrected supplemental data from B. Wanner)
  2. 2.0 2.1 2.2 EcoCyc (release 11.1; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
  3. 3.0 3.1 3.2 3.3 EcoCyc (release 10.6; 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.