dppA:Quickview: Difference between revisions
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DppA binds dipeptides and heme, and mediates chemotaxis to dipeptides through the Tap chemoreceptor. E. coli does not normally use exogeneous heme, but heme can be utilized if a foreign OM heme receptor is expressed in E. coli; heme and dipeptides compete for the same binding site; MppA is an alternative heme periplasmic binding protein; MppA or DppA is required for the uptake of 5-aminolevulinic acid (Letoffe, 2006). After four hours of Zn(II) stress, DppA protein levels decreased (Easton, 2006).<ref name='LIB:EcoGene'/> | |||
Revision as of 23:41, 2 March 2009
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| Quickview | Gene | Gene Product(s) | Expression | Evolution | On One Page |
| References | Suggestions |
| Gene Name | |
|---|---|
| Product(s) |
DppA product[1]: dipeptide transporter product, periplasmic-binding component of ABC superfamily product, B3544 product, Fpp product, Dpp product, Alu product |
| Description |
Component of dipeptide ABC transporter[2] |
| Knock-Out Phenotype | |
| Regulation/Expression | |
| Regulation/Activity |
|
| edit table |
See Help:Quickview for help with entering information in the Quickview table.
Notes
DppA binds dipeptides and heme, and mediates chemotaxis to dipeptides through the Tap chemoreceptor. E. coli does not normally use exogeneous heme, but heme can be utilized if a foreign OM heme receptor is expressed in E. coli; heme and dipeptides compete for the same binding site; MppA is an alternative heme periplasmic binding protein; MppA or DppA is required for the uptake of 5-aminolevulinic acid (Letoffe, 2006). After four hours of Zn(II) stress, DppA protein levels decreased (Easton, 2006).[4]
References
- ↑ 1.0 1.1 Riley, M. et al. (2006) Nucleic Acids Res 34:1-6 (corrected supplemental data from B. Wanner)
- ↑ 2.0 2.1 2.2 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
- ↑ EcoGene: Rudd, KE (2000) EcoGene: a genome sequence database for Escherichia coli K-12. Nucleic Acids Res 28:60-4.