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Part:BBa_K1412001

Designed by: Tangduo Zhang   Group: iGEM14_XMU-China   (2014-08-28)
Revision as of 15:55, 1 September 2014 by Tam.Zhang (Talk | contribs)

Endow the E.coli engineered strain(CL-1) the ability of chemotaxis


What it is

Composite part enables the chemotaxis of our engineering bacteria could be regulated by IPTG and L-Arabinose; pBAD and pLac promoters control the expression of Lac I and CheZ.


What it does

when L-Arabinose is added, pBAD promoter is activated, expressing Lac I, inhibiting the expression of CheZ. When IPTG is added, IPTG combines with Lac I, forming a complex, thus relief the inhibition and the CheZ express, make the ability of chemotaxis recover.


How to use it in their project

Use IPTG as an inducer and L-Arabinose as an inhibitor to take control of the chemotaxis of the engineering bacteria.


Experimental data

Curve of chemotaxis diameter over time under different IPTG concentration .png

Curve of chemotaxis diameter under different antibiotics concentrations.png

Curve of chemotaxis diameter over time under different Ara concentration .png

Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    INCOMPATIBLE WITH RFC[12]
    Illegal NheI site found at 125
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal BamHI site found at 65
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]


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