Team:Warsaw/Calendar-Main/23 April 2009

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PCR inv

Kama


Tasks:

  • Amplification of inv

Methods:

  • PCR mixture's composition:

    2,5μl pfu buffer (Fermentas) 
    2,5μl MgSO4 (Fermentas) 
    1,5μl primers 
    1,5μl dNTPs (10 mM) 
    0,5μl pfu turbo polymerase (od Antka) 
    1μl template DNA from Yersinia

    Solution was topped up with H2O to 25μl.

  • PCR program:
  • inv

    4min 95°C 
    (30s 95°C, 35s 58°C, 4min15s 72°C)x3
    (30s 95°C, 35s 63°C, 4min15s 72°C)x28
    10min 72°C
    ~ 7°C
  • Electrophoretic separation on 1% agarose gel

Results:

  • Gel (from left)
  1. GeneRuler DNA Ladder Mix #SM0333 (Fermentas)
  2. inv
  3. inv (template diluted 10∗)

No product



Cloning of hly gene into pKSII+ vector

Kamil


Tasks:

  • Purification of the PCR product
  • Plasmid assembly

Methods:

  • The purification was carried out using Montage PCR Centrifugal Filter Device P36461 (Milipore) and according to the protocol supplied.

  • Plasmid digest mix was prepared as follows:
    2ul Tango buffer (Fermentas) 
    1ul pKSII plasmid 
    1ul XbaI enzyme 
    1ul SmaI enzyme
    The solution was topped up with H2O to the final volume of 20 ul.
  • hly gene digest mix was prepared as follows:
    2ul Tango buffer (Fermentas) 
    2ul purified gene 
    1ul XbaI enzyme
    the solution was topped up with H2O to the final volume of 20 ul.
  • The digest was kept for 3h at 37°C, and then the enzyme was inactivated for 15min. at 80°C.
  • The ligation mix was prepared as follows:

    1ul plasmid 
    1ul gene 
    1ul ligation buffer G (Fermentas) 
    1ul T4 DNA ligase (Fermentas)
    The solution was topped up with H2O to the final volume of 10 ul. The ligation was carried out in 18°C overnight (~12h) and the inactivated for 10min. at 65°C.
  • Electrophoretic separation on 1% agarose gel


Results:

  • Gel (from left)
  1. GeneRuler DNA Ladder Mix #SM0333 (Fermentas)
  2. not relevant
  3. not relevant
  4. not relevant
  5. plasmid after ligation

The trained eye can distingish between the three isoforms of a plasmid. Looks good enough for transformation.





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