Difference between revisions of "Part:BBa K554003"
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SoxR is a transcription factor found in bacteria and is activated during superoxide or nitric oxide stress. SoxR protein in solution is a homodimer that contains two binuclear iron–sulfur clusters ([2Fe–2S]) which are then oxidized upon superoxide stress. In this form, the protein induces transcription through binding at SoxS promoter. Thus, in the presence of NO, SoxR activates transcription of the gene regulated by SoxS promoter (Hidalgo et al, 1998). | SoxR is a transcription factor found in bacteria and is activated during superoxide or nitric oxide stress. SoxR protein in solution is a homodimer that contains two binuclear iron–sulfur clusters ([2Fe–2S]) which are then oxidized upon superoxide stress. In this form, the protein induces transcription through binding at SoxS promoter. Thus, in the presence of NO, SoxR activates transcription of the gene regulated by SoxS promoter (Hidalgo et al, 1998). | ||
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Revision as of 19:19, 21 September 2011
SoxR
SoxR is a transcription factor found in bacteria and is activated during superoxide or nitric oxide stress. SoxR protein in solution is a homodimer that contains two binuclear iron–sulfur clusters ([2Fe–2S]) which are then oxidized upon superoxide stress. In this form, the protein induces transcription through binding at SoxS promoter. Thus, in the presence of NO, SoxR activates transcription of the gene regulated by SoxS promoter (Hidalgo et al, 1998).
Sequence and Features
Assembly Compatibility:
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]
Usage and Biology
This promoter is used by [http://2011.igem.org/Team:UNICAMP-EMSE_Brazil/Project/Device2 UNICAMP-EMSE Brazil team] in the NO sensor device ("Device 2", which senses NO levels and responds by producing and secreting IL-10. This part is shown in the red box in the following schema:
References
- Hidalgo E, Leautaud V, Demple B (1998) The redox-regulated SoxR protein acts from a single DNA site as a repressor and an allosteric activator. The EMBO Journal 17(9)2629–2636 [http://www.ncbi.nlm.nih.gov/pubmed/?term=9564045%20 Link to Pubmed]