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References Suggestions


Standard Name


Gene Synonym(s)

yfbF, ECK2247, b2254, JW2248, pmrF, ORF2[1][2], ORF2

Product Desc.

undecaprenyl phosphate-L-Ara4FN transferase[2][3]

Undecaprenyl phosphate-alpha-L-ara4FN synthase[4]

Product Synonyms(s)

undecaprenyl phosphate-L-Ara4FN transferase[1], YfbF[2][1], PmrF[2][1], B2254[2][1], ArnC[2][1] , ECK2247, JW2248, ORF2, pmrF, yfbF, b2254

Function from GO

<GO_nr />

Knock-Out Phenotype

transcription unit(s): yfbE[2]

Quick Links

porteco.png EcoCyc.gif regulondb.jpg

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Involved in the modification of lipid A phosphates with aminoarabinose that is required for polymyxin B and cationic antimicrobial peptide resistance. UDP-beta-4-deoxy-4-formamido-L-arabinose is the sugar donor. basRS regulon.[4]


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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 2.2 2.3 2.4 2.5 2.6 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.