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References Suggestions


Standard Name


Gene Synonym(s)

ECK1963, b1967, JW1950, yedU, yzzC[1], yzzC

Product Desc.

heat shock protein (Hsp) 31[2][3];

Component of Hsp31 molecular chaperone[3]

Aminopeptidase and molecular chaperone Hsp31, heat-inducible; chaperone activity is inhibited at high temperature by ATP; homodimeric[4]

Product Synonyms(s)

Hsp31 molecular chaperone[1], B1967[2][1], YzzC[2][1], YedU[2][1], HchA[2][1], Hsp31[2][1] , ECK1963, JW1950, yedU, yzzC, b1967

Function from GO

<GO_nr />

Knock-Out Phenotype

transcription unit(s): hchA[2]

Quick Links

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Important for the processing of 8-12mer peptides in vivo. HchA is an active site cysteine peptidase. Variously called C56 peptidase family, PfpI/HchA peptidase/chaperone family, DJ-1/PARK7 superfamily.[4]


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  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 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. 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.