Coding

Part:BBa_K4632002:Design

Designed by: Haolong Lai   Group: iGEM23_SCAU-China   (2023-10-08)
Revision as of 17:59, 8 October 2023 by LHL scau (Talk | contribs)

Cry3A-like toxin

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Sequence and Features


Assembly Compatibility:
  • 10
    INCOMPATIBLE WITH RFC[10]
    Illegal EcoRI site found at 1813
    Illegal PstI site found at 295
    Illegal PstI site found at 304
    Illegal PstI site found at 1456
  • 12
    INCOMPATIBLE WITH RFC[12]
    Illegal EcoRI site found at 1813
    Illegal PstI site found at 295
    Illegal PstI site found at 304
    Illegal PstI site found at 1456
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal EcoRI site found at 1813
    Illegal BglII site found at 533
  • 23
    INCOMPATIBLE WITH RFC[23]
    Illegal EcoRI site found at 1813
    Illegal PstI site found at 295
    Illegal PstI site found at 304
    Illegal PstI site found at 1456
  • 25
    INCOMPATIBLE WITH RFC[25]
    Illegal EcoRI site found at 1813
    Illegal PstI site found at 295
    Illegal PstI site found at 304
    Illegal PstI site found at 1456
    Illegal AgeI site found at 1495
  • 1000
    COMPATIBLE WITH RFC[1000]


Design Notes

In our design, we aimed to introduce the gene fragment encoding an active Cry3A-like toxin into Escherichia coli using the pET30a vector as a carrier, in order to confer upon it the ability to produce Cry3A-like toxin. To achieve secretion expression, we added a signal peptide sequence, OmpA, to the N-terminus of Cry3A-like toxin. This signal peptide was included to guide the transport of Cry3A-like toxin to the extracellular space. OmpA is a commonly used signal peptide in Escherichia coli that has been verified for the secretion expression of foreign proteins. Additionally, we fused a 6×His tag to the C-terminus of Cry3A-like toxin to facilitate subsequent protein purification and enable specific characterization experiments using Western blot.

Source

We obtained the sequence of the active Cry protoxin of UTD-001 from the original literature. After codon optimization, we entrusted GUANGZHOU IGE BIOTECHNOLOGY LTD to synthesize the gene fragment OmpA-active Cry protoxin of UTD-001.

References

[1] Lee A. Bulla, Jr.Mehmet Candas Formicidae (ant) control using Bacillus thuringiensis toxin US 6,551,800B1[P]. 2003-04-22.