Difference between revisions of "Part:BBa K1104203"

Revision as of 19:53, 1 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).

Illustration of OxyR Activation

OxyR, a positive regulator of hydrogen peroxide-inducible genes in E. coli. The OxyR transcription factor regulates the H₂O₂ response of E. coli. H₂O₂ oxidizes OxyR Cys199 to an R-SOH that reacts with Cys208 in an intramolecular disulphide bond.

Structure of the OxyR Regulatory Domain
(A)Reduced Form: Inactive
(B)Oxidized Form: Activated by ROS

_{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.}

Usage and Biology

Related Parts

• ahpC(Part:BBa_K362001)
  • AhpCp1000(Part:BBa_K1104203)
    • Part:BBa_K1104243: AhpCp1000+E0840
  • AhpCp2D1(Part:BBa_K1104204)
    • Part:BBa_K1104244: AhpCp2D1+E0840
  • AhpCp2(Part:BBa_K1104205)
    • Part:BBa_K1104245: AhpCp2+E0840
  • AhpCpD1(Part:BBa_K1104206)
    • Part:BBa_K1104246: AhpCpD1+E0840
  • AhpCp1(Part:BBa_K1104207)
    • Part:BBa_K1104247: AhpCp1+E0840
  • DsbGp(Part:BBa_K1104208)
    • Part:BBa_K1104248: DsbGp+E0840

Sequence and Features