Composite

Part:BBa_K2169001

Designed by: Filip Cierniak   Group: iGEM16_FAU_Erlangen   (2016-10-14)


ZnO binding Curli protein

Curli subunit CsgA modified with a ZnO binding tag to enable binding of ZnO surfaces.


This device was overexpressed in NEB 5-alpha E. coli cells. The cells were incubated on a see-saw shaker to mediate biofilm formation. ZnOH was added in different varying concentrations for mineralization assays.

We noticed a distinct change in morphology of the resulting ZnO particles when compared to the curli-free reference. Furthermore, while without biofilm the particles were easily rinsed or wiped off, the biofilm was able to firmly affix the particles to the surface it was grown on.


Figure 1: ZnO nanoparticles grown in presence (left) and absence of curli fibers (CsgA-ZnOTag) (right) on a p-doped silica wafer



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]


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