asnB:Quickview

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Standard Name

asnB

Gene Synonym(s)

ECK0662, b0674, JW0660[1], JW0660

Product Desc.

AsnB[2][3];

Component of asparagine synthetase B[2][3]

Asparagine synthase B [glutamine-hydrolyzing][4]

Product Synonyms(s)

asparagine synthetase B[1], B0674[2][1], AsnB[2][1] , ECK0662, JW0660, b0674

Function from GO

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Knock-Out Phenotype
Regulation/Expression

transcription unit(s): asnB[2]

Regulation/Activity
Quick Links

porteco.png EcoCyc.gif regulondb.jpg

dnadisplay.png proteindisplay.png   pubmed.jpg   textpresso.jpg  

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Notes

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AsnA and AsnB are redundant; an asparagine auxotrophy requires that both genes be mutated. Although ammonia can be utilized, glutamine is the preferred substrate.[4]

AsnB functions to continue Asparagine synthesis during nitrogen-limited growth. [5]



References

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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 2.4 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.
  5. Reitzer, LJ & Magasanik, B (1982) Asparagine synthetases of Klebsiella aerogenes: properties and regulation of synthesis. J. Bacteriol. 151 1299-313 PubMed