Team:University of Ottawa/17 July 2008

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Contents

Today in the Lab

Chris

Purification of AtCRE
  • used PCR clean up kit to purify AtCRE sample
  • Tranformation of Competent Cells
  • followed transformation of competent cells protocol to insert AtCRE plasmid into preprepared competent E. coli cells.
  • allowed cells to incubate overnight at 37 C
  • Matt

    Ligation
  • As suggested by Dan the ligation was spiked with 1 ul ATP.
  • I then performed a PCR cleanup of the Ligation product in order to purify it for transformation into competent cells.
  • Transformation
  • A transformation was performed on PTP2 ligation product - I then left the streaked plates to incubate for tomorrow.
  • A glycerol stock was finally made of the BY4642 yeast strain int. DQ232597.
  • Dan

    Gel of construct 1 after ligation
  • Gel was unsucessful, the wrong primers were used for PCR amplification.
  • Ligation seemed to work very efficiently, digesting in 50 uL with the new ClaI enzyme is working very well.
  • Digestions
  • Three digestions were performed 1+T, 1+T (higher concentration of vector and insert), and just the vector
  • Ligations
  • Three above plasmids were ligated overnight
  • Tammy

    Plasmid DNA Isolation
  • XL10 Competent E.Coli cells transformed with pDR197::AtCKX2 were lysed and plasmid DNA was isolated using the Sigma-Aldrich kit.
  • Average DNA concentration approximately 80 ng/μL

  • Digestion of isolated pDR197::AtCKX2
    Reaction Components 1X V (μL)
    H2O 6
    Buffer 3 1
    BSA 1
    BamHI 0.05
    PstI 0.05
    DNA 2
    Total10
    1. Control - No DNA (H2O)
    2. PURE I
    3. 1:10 II
    4. 1:100 I
    5. 1:100 II