Team:Warsaw/Calendar-Main/7 July 2008

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Preparation of constructs with OmpA protein fusions
Piotr:

  1. Digest of confirmed clones of pET15b+OmpA_alpha and pET15b+OmpA_omega with NdeI and BamHI.
  2. Digest of pACYC177 plasmid with NdeI and BamHI, dephosphorylation with CIAP.
  3. Gel electrophoresis of digested plasmids and gel-out of proper bands.
  4. Electrophoresis of gel-out products.
  5. Overnight ligation of pACYC177 and OmpA_alpha.
  6. Overnight ligation of pACYC177 and OmpA_omega.

Cloning omega-A fusion on pKS (second attempt)

Michał L., Ewa, Marcin:

We have just received corrected version of omegaP-link10-homo2 primer. Let's hope this time everything will be fine. We are repeating the PCRs:


PCR
ProductTemplatePrimersProduct length
linker-ApDRIVE-TapTagAL+link10+homo2 and AP+NotI 470 bp
omega-linkerpUC19OmegaL+SacI and OmegaP+link10+homo2400 bp

PCR program for linker-A and omega-linker

TemperatureTime
94°C4:00
94°C0:3028 cycles
gradient 48-55°C0:45
72°C0:50
72°C10:00
4°Cinfinite

Preparation of construct pKS with A protein
Michał L., Marcin:

  1. Gradient PCR (achieving multiple copies of gene coding A protein):
    template DNA pDRIVE-TAPtag - 1 µl
    primer <a href="https://2008.igem.org/Wiki/Team:Warsaw/primers#AP+NotI_N">AP+NotI_N</a></html> - 2 µl
    primer AL+SacI_N - 2 µl
    Pfu buffer with Mg2+ - 5 µl
    10 mM dNTPs - 1 µl
    Pfu Turbo polymerase - 0.5 µl
    H2O - 38.5 µl

    Program:
    1. 94°C, 3 min
    2. 94°C, 30 sec
    3. 62 to 74°C, 45 sec
    4. 72°C, 45 sec
    5. Repeat of elongation step 25X
    6. 72°C, 10 min
    7. Hold at 4 °C
  2. Gel electrophoresis of PCR product.
  3. Isolation of proper band (470 bp) from the gel.
  4. Overnight digest of isolated PCR product and pKS vector with NotI and SacI; to the reaction mix with pKS added 0.5 µl of CIAP.