chbB:Quickview: Difference between revisions

From EcoliWiki
Jump to navigation Jump to search
touch QV table
touch QV table
Line 65: Line 65:
!align=left {{table_heading_style}} |Quick Links
!align=left {{table_heading_style}} |Quick Links
||
||
[http://porteco.org/AjaxSearch.jsp?searchString=chbB&s=search PortEco search(chbB)]    [http://ecoliwiki.net/tools/display_dna.php?gene=chbB&loc=MG1655:1819643..1819323,W3110:1823333..1823013,DH10B:1910214..1909894,BW2952:1711382..1711702 DNA display]    [http://ecoliwiki.net/tools/display_protein.php?f=NC_000913&start=1711382&end=1711702&gene=chbB&aa=mekkhiylfcsagmstsllvskmraqaekyevpviieafpetlagekgqnadvvllgpqiaymlpeiqrllpnkpvevidsllygkvdglgvlkaavaaikkaaan Protein display]    [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=Search&Term=chbB+AND+escherichia+coli Pubmed(chbB)]    [http://trimer.tamu.edu/cgi-bin/textpresso/search?q=chbB Textpresso(chbB)]
[http://porteco.org/AjaxSearch.jsp?searchString=chbB&s=search PortEco search(chbB)]    [http://ecoliwiki.net/tools/display_dna.php?gene=chbB&loc=MG1655:1819643..1819323,W3110:1823333..1823013,DH10B:1910214..1909894,BW2952:1711382..1711702 DNA display]    [http://ecoliwiki.net/tools/display_protein.php?f=NC_000913&start=1711382&end=1711702&gene=chbB&aa=mekkhiylfcsagmstsllvskmraqaekyevpviieafpetlagekgqnadvvllgpqiaymlpeiqrllpnkpvevidsllygkvdglgvlkaavaaikkaaan Protein display]    [http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&cmd=Search&Term=chbB+AND+escherichia+coli Pubmed(chbB)]    [http://textpresso.tamu.edu/cgi-bin/textpresso/search?q=chbB Textpresso(chbB)]


|- class="tableEdit_footer"  
|- class="tableEdit_footer"  

Revision as of 18:11, 27 June 2011

{{#css:Suppresslinks.css}}<css>h1 .editsection { display:none;} h2 .editsection { display:none;}</css>

Quickview   Gene   Gene Product(s)   Expression   Evolution   On One Page    
References Suggestions

See Help:Quickview for help with entering information in the Quickview table.

Standard Name

chbB

Gene Synonym(s)

ECK1736, b1738, JW1727, celA[1]

Product Desc.

ChbB[2][3];

Component of EIIChb[2][3]

N,N'-diacetylchitobiose utilization, enzyme IIB(Chb) of the PTS transport system[4]

Product Synonyms(s)

N,N'-diacetylchitobiose-specific enzyme IIB component of PTS[1], B1738[2][1], ChbB[2][1], CelA[2][1]

Function from GO

<GO_nr />

Knock-Out Phenotype
Regulation/Expression

transcription unit(s): chbBCARFG[2]

Regulation/Activity
Quick Links

PortEco search(chbB)    DNA display    Protein display    Pubmed(chbB)    Textpresso(chbB)

See Help:Quickview for help with entering information in the Quickview table.

Notes

[back to top]


The chb operon is induced by N,N'-diacetylchitobiose. The chb operon was previously thought to encode a cryptic cel operon for a cellobiose degradation system. The Cel+ phenotype is due to mutations making expression chitobiose-independent, but a fully induced operon did not support growth on cellobiose, implying a mutation altering the substrate specificity is needed; several candidate mutations were noted in Genbank, but not proven to alter the specificity of the system (Keyhani, 1997). In contrast, a later study claim that mutations making the operon expression high-level constitutive by chbR and nagC mutations are sufficient for the Cel+ phenotype and that no mutations altering substrate specificity are required (Kachroo, 2007).[4]



References

[back to top]


  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 2.3 2.4 2.5 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.