Team:KIT-Kyoto/Notebook-week5p

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<h2>September 20th</h2>
<h2>September 20th</h2>
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<strong>1-1-64 Transfection</strong><br>
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At 20 min after removing the medium, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng each of pAct5C-GAL4 DNA and pUAS-EGFP DNA was added to the well. As a negative control, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng of pUAS-EGFP DNA alone was added to the well. Similarly, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng each of pAct5C-GAL4 DNA and pUAS-LacZ DNA was added to the well. As a negative control for this experiment, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng of pUAS-LacZ DNA alone was added to the other well. At 4 hours after transfection, the transfection medium was removed and the Schneider’s Drosophila medium containing 10% fetal bovine serum was added to each well. The cells were incubated for 48 or 72 hours at 25 ℃.
At 20 min after removing the medium, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng each of pAct5C-GAL4 DNA and pUAS-EGFP DNA was added to the well. As a negative control, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng of pUAS-EGFP DNA alone was added to the well. Similarly, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng each of pAct5C-GAL4 DNA and pUAS-LacZ DNA was added to the well. As a negative control for this experiment, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng of pUAS-LacZ DNA alone was added to the other well. At 4 hours after transfection, the transfection medium was removed and the Schneider’s Drosophila medium containing 10% fetal bovine serum was added to each well. The cells were incubated for 48 or 72 hours at 25 ℃.
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By red eye screening, we identified the strain 56 and strain 65 to be the successfully transformed lines. These transformed flies are kept at 25℃ and later will be further inspected for chromosome linkage of the transgene.
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After incubation with the first antibody, the cells were washed with PBS (three times for 10 min each). Then the Alexa-conjugated anti-mouse IgG (X400 dilution in PBS containing 5% normal goat serum) added to the cells and incubate for 4 hours at 4℃. After washing with PBS (three times for 10 min each), cells were mounted with mounting medium in DAPI and examined under the confocal lazer microscope (Olympus, Fv10i).
After incubation with the first antibody, the cells were washed with PBS (three times for 10 min each). Then the Alexa-conjugated anti-mouse IgG (X400 dilution in PBS containing 5% normal goat serum) added to the cells and incubate for 4 hours at 4℃. After washing with PBS (three times for 10 min each), cells were mounted with mounting medium in DAPI and examined under the confocal lazer microscope (Olympus, Fv10i).
Results: 10.1% cells co-transfected with pAct5C-GAL4 DNA and pUAS-LacZ DNA were observed to be LacZ-positive, while no LacZ-positive cell was detected for the negative control cells, indicating that the P-element plasmid, pUAS-LacZ DNA, Biobrick part (BBa_K758005) is truly functional in Drosophila cells. We therefore decided to send this plasmid to iGEM Headquarters.  
Results: 10.1% cells co-transfected with pAct5C-GAL4 DNA and pUAS-LacZ DNA were observed to be LacZ-positive, while no LacZ-positive cell was detected for the negative control cells, indicating that the P-element plasmid, pUAS-LacZ DNA, Biobrick part (BBa_K758005) is truly functional in Drosophila cells. We therefore decided to send this plasmid to iGEM Headquarters.  

Latest revision as of 06:59, 26 September 2012






September 20th



1-1-64 Transfection

At 20 min after removing the medium, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng each of pAct5C-GAL4 DNA and pUAS-EGFP DNA was added to the well. As a negative control, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng of pUAS-EGFP DNA alone was added to the well. Similarly, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng each of pAct5C-GAL4 DNA and pUAS-LacZ DNA was added to the well. As a negative control for this experiment, 25 uL of serum free medium containing the 1 uL of siLentfect and 200 ng of pUAS-LacZ DNA alone was added to the other well. At 4 hours after transfection, the transfection medium was removed and the Schneider’s Drosophila medium containing 10% fetal bovine serum was added to each well. The cells were incubated for 48 or 72 hours at 25 ℃.

September 22nd


The cells transfected with pAct5C-GAL4 DNA and pUAS-EGFP DNA were examined under the confocal lazer microscope (Olympus, Fv10i).
Results: 12.6% cells were observed to be EGFP-positive, while only o.5% cells were apparently EGFP-positive for the negative control cells, indicating that the P-element plasmid, pUAS-EGFP DNA, Biobrick part (BBa_K758006) is truly functional in Drosophila cells. We therefore decided to send this prasmid to iGEM Headquarters.

Leftpanel: cells co-transfected with pAct5C-GAL4 DNA and pUAS-EGFP DNA
Right panel: cells transfected with pUAS-EGFP DNA alone (negative control)

      

The cells transfected with pAct5C-GAL4 DNA and pUAS-LacZ DNA were fixed with cold methanol for 20 min or 4% paraformaldehyde for 15 min. After fixation, cells were washed with 0.5% Triton X-100 in PBS, then masked with 5% normal goat serum in PBS for 1 hour. Then the monoclonal anti-beta galactosidase antibody (X500 dilution in PBS containing 5% normal goat serum) was added to the fixed cells and incubated for 16 hours at 4℃.

September 23rd



After incubation with the first antibody, the cells were washed with PBS (three times for 10 min each). Then the Alexa-conjugated anti-mouse IgG (X400 dilution in PBS containing 5% normal goat serum) added to the cells and incubate for 4 hours at 4℃. After washing with PBS (three times for 10 min each), cells were mounted with mounting medium in DAPI and examined under the confocal lazer microscope (Olympus, Fv10i). Results: 10.1% cells co-transfected with pAct5C-GAL4 DNA and pUAS-LacZ DNA were observed to be LacZ-positive, while no LacZ-positive cell was detected for the negative control cells, indicating that the P-element plasmid, pUAS-LacZ DNA, Biobrick part (BBa_K758005) is truly functional in Drosophila cells. We therefore decided to send this plasmid to iGEM Headquarters.

After 72 hours incubation, the cells transfected with pAct5C-GAL4 DNA and pUAS-EGFP DNA were examined under the confocal lazer microscope (Olympus, Fv10i). Results were nearly the same as those after 48 hours incubation.

Leftpanel: cells co-transfected with pAct5C-GAL4 DNA and pUAS-LacZ DNA
Right panel: cells transfected with pUAS-LacZ DNA (negative control)