Composite

Part:BBa_K3718002

Designed by: Chan Pui Ching   Group: iGEM21_Hong_Kong_UCCKE   (2021-10-02)
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Customizable detection and expression with increased growth


Part II of the Toolkit for Detection with Proliferation Control

The Modular Receptor Platform (MRP) is designed according to the paper published in 2018 (Chang et al, 2018). When the antigen/ligand binds to the nanobody, dimerization of the protein CadC domains occur. As a result, this allows the binding of the pCadBA operon region and transcription downstream is promoted at the same time.

800px-T--Hong_Kong_UCCKE--MRP.png

The VHH region has high flexibility as it can be customized for binding with different targets, so that any specific targets with single-domain antibodies available will be able to bind with the VHH region for detection. Users can add their own VHH region after the transmembrane region DNA via restriction ligation using KasI. For more details about the design of the customizable VHH region, please visit the registry of the part BBa_K3718001.

800px-T--Hong_Kong_UCCKE--using_toolkit.jpeg

For the developers to clone the gene(s) that they want to express, a multiple cloning site (MCS) K660500 to allow for the insertion of the target genes. arcA and iclR genes are originally knocked out using Part I of our toolkit to reduce growth. When the antigen is detected, arcA and iclR are expressed to restore growth while protein(s) of choice are expressed.


Sequence and Features


Assembly Compatibility:
  • 10
    INCOMPATIBLE WITH RFC[10]
    Illegal prefix found in sequence at 67
    Illegal suffix found in sequence at 629
  • 12
    INCOMPATIBLE WITH RFC[12]
    Illegal EcoRI site found at 67
    Illegal NheI site found at 7
    Illegal NheI site found at 30
    Illegal SpeI site found at 630
    Illegal PstI site found at 644
    Illegal NotI site found at 73
    Illegal NotI site found at 637
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal EcoRI site found at 67
    Illegal BglII site found at 2337
    Illegal BamHI site found at 912
    Illegal XhoI site found at 906
  • 23
    INCOMPATIBLE WITH RFC[23]
    Illegal prefix found in sequence at 67
    Illegal suffix found in sequence at 630
  • 25
    INCOMPATIBLE WITH RFC[25]
    Illegal prefix found in sequence at 67
    Illegal XbaI site found at 82
    Illegal SpeI site found at 630
    Illegal PstI site found at 644
  • 1000
    COMPATIBLE WITH RFC[1000]


Reference

H. Waegeman, J. Beauprez, H. Moens, J. Maertens, M. De Mey, M. R. Foulquié-Moreno, J. J. Heijnen, D. Charlier, and W. Soetaert, “Effect of ICLR and ARCA knockouts on biomass formation and metabolic fluxes in escherichia coli K12 and its implications on understanding the metabolism of escherichia coli BL21 (DE3),” BMC Microbiology, vol. 11, no. 1, p. 70, 2011.

H.-J. Chang, P. Mayonove, A. Zavala, A. De Visch, P. Minard, M. Cohen-Gonsaud, and J. Bonnet, “A modular receptor platform to expand the sensing repertoire of bacteria,” ACS Synthetic Biology, vol. 7, no. 1, pp. 166–175, 2017.

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