Difference between revisions of "Part:BBa K1104203"

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ahpC promoter, as well as its improvement, can be activated by OxyR ([https://parts.igem.org/Part:BBa_K1104200 Part:BBa_K1104200]).
 
ahpC promoter, as well as its improvement, can be activated by OxyR ([https://parts.igem.org/Part:BBa_K1104200 Part:BBa_K1104200]).
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[[File: NYMU_OxyRactive.png|frame|center|'''Illustration of OxyR Activation''']]
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OxyR, a positive regulator of hydrogen peroxide-inducible genes in ''E. coli''.
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The OxyR transcription factor regulates the H<sub>2</sub>O<sub>2</sub> response of ''E. coli''. H<sub>2</sub>O<sub>2</sub> oxidizes OxyR Cys199 to an R-SOH that reacts with Cys208 in an intramolecular disulphide bond.
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[[File: NYMU_ORD.png|thumb|300px|center|'''Structure of the OxyR Regulatory Domain'''<br />(A)Reduced Form: Inactive<br />(B)Oxidized Form: Activated by ROS<br /> ]]
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:::::<sub>Reference: D'Autréaux, B., & Toledano, M. B. (October 01, 2007). ROS as signalling molecules: mechanisms that generate specificity in ROS homeostasis. Nature Reviews Molecular Cell Biology, 8, 10, 813-824.</sub>
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===Usage and Biology===
 
===Usage and Biology===

Revision as of 12:28, 2 October 2013

AhpCp1000

Introduction

We improve the function of a BioBrick Part: ahpC promoter (Part:K362001) designed by [http://2010.igem.org/Team:KIT-Kyoto/Parts 2010 KIT-Tokyo team] into 6 versions.On PartRegistry, the complex part(according to [http://ecocyc.org/ECOLI/new-image?object=EG11384 Ecocyc]) composition contains hybrid promoters, shared TFBS (Transcription Factor Binding Site), and reverse promoter DsbG. In this part AhpCp1000, we succesfully mutated the Pst1 site (ctgcag->ctacag) of ahpC promoter (Part:K362001).

Mutation of ahpC promoter(Part:K362001)

ahpC promoter, as well as its improvement, can be activated by OxyR (Part:BBa_K1104200).


Usage and Biology

We designed circuit fighting against Nosema ceranae. After Nosema ceranae infected midgut cells of bees, and Bee. coli should sense the pathogen first before the following circuit(fighting against Nosema ceranae)is triggered, and substance such as Defensin (Part:BBa_K1104300), Abaesin(Part:BBa_K1104301) (more details on [http://2013.igem.org/Team:NYMU-Taipei/Project/Inhibition/Killing Killing Nosema] page) in the following circuit will express.

To enhance the strength , we added a device (more details on [http://2013.igem.org/Team:NYMU-Taipei/Project/Inhibition/Sensor Sensing Nosema] page).

Strenthening device

Related Parts

Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    COMPATIBLE WITH RFC[12]
  • 21
    COMPATIBLE WITH RFC[21]
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]