chbG:Quickview
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| Quickview | Gene | Gene Product(s) | Expression | Evolution | On One Page |
| References | Suggestions |
<protect>
| Standard Name |
chbG |
|---|---|
| Gene Synonym(s) |
ECK1731, b1733, JW1722, ydjC, celG[1] |
| Product Desc. |
Member of chb operon, function unknown[4] |
| Product Synonyms(s) |
conserved protein[1], B1733[2][1], ChbG[2][1], YdjC[2][1], CelG[2][1] , ECK1731, JW1722, ydjC, b1733 |
| Function from GO |
<GO_nr /> |
| Knock-Out Phenotype | |
| Regulation/Expression | |
| Regulation/Activity | |
| Quick Links |
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Notes
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
- ↑ 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)
- ↑ 2.0 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
- ↑ EcoCyc (release 11.1; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
- ↑ 4.0 4.1 EcoGene: Rudd, KE (2000) EcoGene: a genome sequence database for Escherichia coli K-12. Nucleic Acids Res 28:60-4.
