Difference between revisions of "Part:BBa K1653024"
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[[File:Nagahama_ubiquinone-8.jpg|350px|thumb|Analysis of ubiquinone-8 synthesized by''E. coli'' JM109/[https://parts.igem.org/wiki/index.php?title=Part:BBa_K1653024 BBa_K1653024]
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[[File:Nagahama_ubiquinone-8.jpg|350px|thumb|Analysis of Ubiquinone-8 synthesized by
 
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 by thin-layer chromatography (TLC)
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''E. coli'' JM109/[https://parts.igem.org/wiki/index.php?title=Part:BBa_K1653025 BBa_K1653025] (terpene precursor　production device)
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Right lane: IPTG Left lane: IPTG minus
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 by thin-layer chromatography (TLC).
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Right lane: IPTG plus, Left lane: IPTG minus
 
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Revision as of 07:41, 18 September 2015

Terpene precursor mass-production device

We want to make the E.coli produces farnesol and geraniol which are one of the terpenoids. To produce great quantity of terpenoids they need many terpene precursor. E. coli produces a small amount of the terpene precursor in MEP pathway. In MEP pathway, there are four enzymes (ispD, ispf, idi, dxs) which are speed limiting enzyme for terpenoids precursors produce in E. coli. In order to create a high-yield strains producing IPP and DMAPP, we exogenously engineer to superimpose these genes into E. coli to create strains overproducing IPP and DMAPP in a MEP pathway.
[[http://2015.igem.org/Team:Nagahama/Medal_Parts#Terpene_precursor_mass-production_device.28BBa_K1653024.29 here] is our result page.]


Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    COMPATIBLE WITH RFC[12]
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal BglII site found at 3609
    Illegal BamHI site found at 2937
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    INCOMPATIBLE WITH RFC[1000]
    Illegal SapI.rc site found at 811


To confirm increased production of terpene precursors by Terpene precursor mass-production device. we put attention on ubiquinone. Ubiquinone 8 is made from Farnesyl diphosphate (FPP) which is one of the terpene precursors . quinone is one of the electron carrier present in the cell membrane of prokaryotes. And also they glow when exposed to UV rays.In the measurement of production of quinone it was measured by thin-layer chromatography. (TLC silica gel)

Result: The figure on the left is analysis of ubiquinone 8 by thin-layer chromatography. Right lane is JM109 /Terpene precursor mass-production device with IPTG Left lane is JM109/Terpene precursor mass-production device IPTG minus . Both it was 2μl spot. The right of the figure,Estimation of ubiquinone-8 content instead Each intensity of spots indicating the content of ubiquinone-8 From two figures, those which are overexpressed in reintroduced to E. coli four genes, it is better to have overexpressed were many production of ubiquinone 8 as compared with those that do not overexpress

Discussion: From this result, the amount of ubiquinone 8 of the final material by the increased amount of terpene precursors is increased by re-introducing the four genes are over-expressed in E. coli. Therefore, it considered could strengthen the MEP pathway.

  • Analysis of Ubiquinone-8 synthesized by
    E. coli JM109/BBa_K1653025 (terpene precursor　production device)
     by thin-layer chromatography (TLC). Right lane: IPTG plus, Left lane: IPTG minus
  • Estimation of ubiquinone-8 content in spot Each intensity of spots indicating the content of ubiquinone-8