Team:Bielefeld-CeBiTec/Notebook/Journal/Biosafety/Jul

From 2014.igem.org

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<li>
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Transformation of the oligonucleotide containing the flanking sites for the deletion of <i>dadX</i>. The successful replacement of the constitutive alanine racemase was verified via kanamycin selection and
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Transformation of the oligonucleotide containing the flanking sites for the deletion of <i>dadX</i>. The successful replacement of the catabolic alanine racemase was verified via kanamycin selection and
<a href="https://2014.igem.org/Team:Bielefeld-CeBiTec/Notebook/Protocols#ColonyPCR" target="_blank">Colony PCR</a> (<a href="https://2014.igem.org/Team:Bielefeld-CeBiTec/Notebook/Primer#dadX_Ec_control1" target="_blank">dadX_Ec_control1</a>, <a href="https://2014.igem.org/Team:Bielefeld-CeBiTec/Notebook/Primer#dadX_Ec_control2" target="_blank">dadX_Ec_control2</a>)
<a href="https://2014.igem.org/Team:Bielefeld-CeBiTec/Notebook/Protocols#ColonyPCR" target="_blank">Colony PCR</a> (<a href="https://2014.igem.org/Team:Bielefeld-CeBiTec/Notebook/Primer#dadX_Ec_control1" target="_blank">dadX_Ec_control1</a>, <a href="https://2014.igem.org/Team:Bielefeld-CeBiTec/Notebook/Primer#dadX_Ec_control2" target="_blank">dadX_Ec_control2</a>)
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<li>Annealing temperature: 55 °C</li>
<li>Annealing temperature: 55 °C</li>
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                <li>Primer: </li>
<li>Bands as expected (3004 bp)</li>
<li>Bands as expected (3004 bp)</li>
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<ul>
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Transformation of the oligonucleotide containing the flanking sites for the deletion of <i>dadX</i> into the KRX ∆<i>alr</i>. The successful replacement of the katabolic alanine racemase was verified via kanamycin selection and
 +
 +
<a href="https://2014.igem.org/Team:Bielefeld-CeBiTec/Notebook/Protocols#ColonyPCR" target="_blank">Colony PCR</a> (<a href="https://2014.igem.org/Team:Bielefeld-CeBiTec/Notebook/Primer#dadX_Ec_control1" target="_blank">dadX_Ec_control1</a>, <a href="https://2014.igem.org/Team:Bielefeld-CeBiTec/Notebook/Primer#dadX_Ec_control2" target="_blank">dadX_Ec_control2</a>)
 +
 +
<ul>
 +
<li>Annealing temperature: 55 °C</li>
 +
<li>Bands as expected (3004 bp)</li>
 +
</ul>
 +
</li>
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 +
<li>
 +
Resulting in the genotype KRX ∆<i>alr</i> <i>kan:dadX</i>.
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</ul>
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Revision as of 02:29, 9 October 2014


July

  • Transformation of the single deletions strains E. coli strains KRX ∆alr and DH5alpha ∆alr with the plasmid pRedET containg the Recombinase using the Genebridge RedET-System protocol.
  • Successful amplifikation of the oligonucleotide containing the flanking sites for the deletion of dadX and purification using the gel extraction clean-up kit from Promega.
  • Transformation of the oligonucleotide containing the flanking sites for the deletion of dadX. The successful replacement of the catabolic alanine racemase was verified via kanamycin selection and Colony PCR (dadX_Ec_control1, dadX_Ec_control2)
    • Annealing temperature: 55 °C
    • Primer:
    • Bands as expected (3004 bp)
  • Resulting in the genotype DH5aplha ∆alr kan:dadX, while the dadX deletion in the KRX strain was not successful.
  • Transformation of the oligonucleotide containing the flanking sites for the deletion of dadX into the KRX ∆alr. The successful replacement of the katabolic alanine racemase was verified via kanamycin selection and Colony PCR (dadX_Ec_control1, dadX_Ec_control2)
    • Annealing temperature: 55 °C
    • Bands as expected (3004 bp)
  • Resulting in the genotype KRX ∆alr kan:dadX.