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Standard Name


Gene Synonym(s)

ECK4238, b4243, JW5755[1], JW5755, yjgF

Product Desc.

conserved protein[2][3];

Component of YjgF homotrimer[3]

Function unknown; Salmonella ortholog required for full IlvE activity and for the dependence of the alternative pyrimidine biosynthesis (APB) pathway of thiamine biosynthesis upon the oxidative pentose phosphate pathway; serine sensitivity; trimeric[4]

Product Synonyms(s)

ketoacid-binding protein[1], B4243[2][1], YjgF[2][1] , ECK4238, JW5755, b4243

Function from GO

Cellular Component

Knock-Out Phenotype

transcription unit(s): yjgF[2]

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YjgF, RutC, TdcF, YoaB and YjgH are paralogs and members of a highly conserved YjgF family (pfam:PF01042) with diverse mutant phenotypes and unknown molecular function; the family members form homotrimers, some binding 2-ketoglutarate or related compounds. The rat homolog PSP (perchloric acid-soluble protein) has been reported to have endoribonuclease activity, Endoribonuclease L, against ss mRNA, inhibiting translation, but this activity has not been demonstrated for other members.[4]


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  1. 1.0 1.1 1.2 1.3 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 EcoCyc (release 10.6; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
  3. 3.0 3.1 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.