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| | <li>HEK 293T cells have been cotransfected with 1 µg, 2 µg, 3µg ve 4 µg Tet off – pTRE Aprotinin. The cells collected and protein isolation was performed to measure the serine protease inhibition. According to the positive control test, these results Show dose-dependent reduction and the production of aprotinin has increased according to the amount of cells successfully transfected. | | <li>HEK 293T cells have been cotransfected with 1 µg, 2 µg, 3µg ve 4 µg Tet off – pTRE Aprotinin. The cells collected and protein isolation was performed to measure the serine protease inhibition. According to the positive control test, these results Show dose-dependent reduction and the production of aprotinin has increased according to the amount of cells successfully transfected. |
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Revision as of 14:49, 21 October 2014
Aprotinin Assay
As Aprotinin is a serine protease inhibitor aprotinin activity can be measured using the correlation of serine protease inhibition the aprotinin inhibits.
HEK 293T cell was transfected with 1 µg pTRE-Aprotinin and cells were obtained after 36 hours which continued with the isolation of proteins. Afterwards, the isolated protein was placed into a tube containing the serine protease and its activity was measured.
The graphic shows that serine protease inhibition was not observed in the isolated proteins of the cells transfected with the pTRE vectors and our negative controls only.
The inhibition values obtained by adding 6 mg/dl Bovine Aprotinin(sigmaA1153) samples obtained by cattles and the cotransfected Tet off – pTRE Aprotinin, show that the transfected HEK 293 T cells perform a lower amount of inhibition compared to our standard sample however that is a very minimal difference. As a result, our transfected aprotinin has accomplished more inhibition than our negative control and has proved that it can pe produced functionally. Afterwards the HEK 293 T cells cotransfected with Tet off – pTRE Aprotinin have been transfected in different amounts to characterise and measure its serine protease activity.
Chacarterisation
HEK 293T cells have been cotransfected with 1 µg, 2 µg, 3µg ve 4 µg Tet off – pTRE Aprotinin. The cells collected and protein isolation was performed to measure the serine protease inhibition. According to the positive control test, these results Show dose-dependent reduction and the production of aprotinin has increased according to the amount of cells successfully transfected.
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