Team:TU-Eindhoven/Notebook/Week1

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<h3>Our lab work</h3>
<h3>Our lab work</h3>
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To <span class= "red"> isolate the bacteria and yeast </span> in which the genes are inserted, the selection marker of the vector is used. We had to put the fluorescent proteins in a new vector <span class= "red">(pYES3)</span> instead of the regular one (CMV), because the calcium channels were transported in a vector with the same immunity as the pYES2 vector. During the first attempts, we failed to put the B-GECO in the old vector so we tried it again with the new vector. We also put the proteins in a gel to test whether the B-GECO protein was produced by the E. coli. Furthermore, the <span class= "red">fluorescence</span> of R- and G-GECOs are <span class= "red">measured</span> at different Ca<sup>2+</sup> concentrations.
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To <span class= "red"> isolate the bacteria and yeast </span> in which the genes are inserted, the selection marker of the vector is used. We had to put the fluorescent proteins in a new vector <span class= "red">(pYES3)</span> instead of the initial one (pYES2), because the calcium channels were transported in a vector with the same immunity as the pYES2 vector. During the first attempts, we failed to put the B-GECO in the old vector so we tried it again with the new vector. We also put the proteins in a gel to test whether the B-GECO protein was produced by the E. coli. Furthermore, the <span class= "red">fluorescence</span> of R- and G-GECOs are <span class= "red">measured</span> at different Ca<sup>2+</sup> concentrations.
The E. coli BL21 transformed with pET28a and B-GECO are subcultured and their plasmids are extracted. These plasmids are used for analysis on agarose gel. This analysis shows which colonies contain the vector plus insert. The ones which contain all necessary content will be used for the production of the B-GECO protein, which is needed to analyze the protein kinetics. We use the pET28a vector, because it is suited for production of proteins in E. coli. Protein expression with pYES2 or pYES3 is only possible in yeast.
The E. coli BL21 transformed with pET28a and B-GECO are subcultured and their plasmids are extracted. These plasmids are used for analysis on agarose gel. This analysis shows which colonies contain the vector plus insert. The ones which contain all necessary content will be used for the production of the B-GECO protein, which is needed to analyze the protein kinetics. We use the pET28a vector, because it is suited for production of proteins in E. coli. Protein expression with pYES2 or pYES3 is only possible in yeast.

Latest revision as of 00:50, 27 September 2012