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Ligation strategy

  • Apart from ligating into the necessary plasmid at the end, there are no ligation steps involved in making this device. PCR and PCR fusion are being are used because of the unusual design of the device, in so far as both strands have coding regions. The links below explain the method by which we will use PCR to create the device.



Stop Codons

A stop codon has been included between Lox66 and B0021 to prevent the E.Coli cells from translating past the first Lox site. This reduces the load that this part will place on the E.coli cell so increases its stability in vivo. TGA is by far the most commonly used stop codon in E.Coli.


The Lox sites are 34bp long therefore if this part is placed after an RBS it will induce a frameshift in the protein produced, therefore creating a mangled protein. Two random bases were added to the start of the Lox site to prevent a frameshift.

Cre plasmid

Commercially available Cre plasmid (pdf)

WetLab work entries

Jonny Wells <br\> Kirsten Jensen

(08/06 - 10/06)

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