Coding

Part:BBa_K2933012

Designed by: Yongjie Li   Group: iGEM19_TJUSLS_China   (2019-09-08)


subclass B1 metallo-beta-lactamase JOHN-1, codon optimized in E. coli

This part encodes a protein called JOHN-1, which is a metallo-beta-lactamase of subclass B1.


Sequence and Features


Assembly Compatibility:
  • 10
    INCOMPATIBLE WITH RFC[10]
    Illegal PstI site found at 76
  • 12
    INCOMPATIBLE WITH RFC[12]
    Illegal PstI site found at 76
  • 21
    COMPATIBLE WITH RFC[21]
  • 23
    INCOMPATIBLE WITH RFC[23]
    Illegal PstI site found at 76
  • 25
    INCOMPATIBLE WITH RFC[25]
    Illegal PstI site found at 76
  • 1000
    INCOMPATIBLE WITH RFC[1000]
    Illegal SapI.rc site found at 600


Usage and Biology

Flavobacterium johnsoniae (formerly Cytophaga johnsonae) is an environmental bacterium that can cause skin lesions in fish and is a plant pathogen.

Origin(organism)

Flavobacterium johnsoniae .

References

[1]Naas Thierry,Bellais Samuel,Nordmann Patrice. Molecular and biochemical characterization of a carbapenem-hydrolysing beta-lactamase from Flavobacterium johnsoniae.[J]. Journal of Antimicrobial Chemotherapy,2003,51(2).

Molecular cloning

First, we used the vector pGEX-6p-1 to construct our expression plasmid. And then we converted the plasmid constructed to E. coli DH5α to expand the plasmid largely.

JOHN-1-6p.jpg
Figure 1. Left: The PCR result of JOHN-1. Right: The verification results by enzyme digestion.

After verification, it was determined that the construction is successful. We converted the plasmid to E. coli BL21(DE3) for expression and purification.

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Parameters
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