Difference between revisions of "Part:BBa K323088:Experience"

Latest revision as of 22:22, 27 October 2010

The 2010 iGEM team Slovenia used this part in combination with Part:BBa_K323089 containing a corresponding DNA binding protein. Both parts were inserted into the low copy vector pSB4C5 (Part:pSB4C5) by tripoint ligation to form a device for in vivo testing of protein-DNA binding.

We have constructed 7 parts for testing of DNA binding proteins HivC (Part:BBa_K323090), Gli1 (Part:BBa_K323092), Zif268 (Part:BBa_K323094), Jazz (Part:BBa_K323096), Blues (Part:BBa_K323098), PBSII (Part:BBa_K323100) and TAL (Part:BBa_K323102).

Binding of the tested proteins was determined with the beta-galactosidase assay (for a detailed description of the method see the 2010 iGEM team Slovenia [http://2010.igem.org/Team:Slovenia/METHODS_and_PARTS wiki]). Beta-galactosidase activity of the culture with no arabinose present should have indicated maximum activity due to minimal expression of the DNA binding protein. Therefore, we normalized the activity of the latter culture to 100 percent, and the beta-galactosidase activity of the culture with 1% arabinose present in the media was compared to the latter. Results of a representative experiments are shown below.

Figure: HivC, Gli1, Zif268, Jazz, Blues, PBSII and TAL bind to their corresponding DNA binding sites. In all constructs tested, the beta-galactosidase activity decreased with addition of arabinose, which induces the transcription of the DNA binding protein. These results show that all of the tested DNA binding proteins bind to their specific operator sequences.

Applications of BBa_K323088

User Reviews

UNIQa72ce0515d51c1cb-partinfo-00000000-QINU UNIQa72ce0515d51c1cb-partinfo-00000001-QINU

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 __NOTOC__
-The 2010 iGEM team Slovenia used this part in combination with [[Part:BBa_K323089]] containing a corresponding DNA binding protein. Both parts were inserted into the low copy vector pSB4C5 ([[Part:pSB4C5]]) by tripoint ligation to form a '''universal testing device for DNA binding proteins'''.
-We have constructed 14 parts for testing of DNA binding proteins HivC ([[Part:BBa_K323090]] and [[Part:BBa_K323093]]), Gli1 ([[Part:BBa_K323092]] and [[Part:BBa_K323091]]), Zif268 ([[Part:BBa_K323094]], [[Part:BBa_K323097]] and [[Part:BBa_K323103]]), Jazz ([[Part:BBa_K323096]] and [[Part:BBa_K323095]]), Blues ([[Part:BBa_K323098]] and [[Part:BBa_K323101]]), PBSII ([[Part:BBa_K323100]] and [[Part:BBa_K323099]]) and TAL ([[Part:BBa_K323102]]).
+The 2010 iGEM team Slovenia used this part in combination with [[Part:BBa_K323089]] containing a corresponding DNA binding protein. Both parts were inserted into the low copy vector pSB4C5 ([[Part:pSB4C5]]) by tripoint ligation to form a '''device for in vivo testing of protein-DNA binding'''.
-Binding of the tested proteins was determined with the beta-galactosidase assay (for a detailed description of the method see the 2010 iGEM team Slovenia wiki). The representative results gathered below have been taken from different experiments and averaged to an arithmetic mean. The β-galactosidase activity of the culture without added arabinose, which should have indicated maximal activity due to minimal expression of the DNA binding protein, was normalized to 100 percent, and the β-galactosidase activity of the culture with added arabinose was compared to the latter.
+We have constructed 7 parts for testing of DNA binding proteins HivC ([[Part:BBa_K323090]]), Gli1 ([[Part:BBa_K323092]]), Zif268 ([[Part:BBa_K323094]]), Jazz ([[Part:BBa_K323096]]), Blues ([[Part:BBa_K323098]]), PBSII ([[Part:BBa_K323100]]) and TAL ([[Part:BBa_K323102]]).
+Binding of the tested proteins was determined with the beta-galactosidase assay (for a detailed description of the method see the 2010 iGEM team Slovenia [http://2010.igem.org/Team:Slovenia/METHODS_and_PARTS wiki]). Beta-galactosidase activity of the culture with no arabinose present should have indicated maximum activity due to minimal expression of the DNA binding protein. Therefore, we normalized the activity of the latter culture to 100 percent, and the beta-galactosidase activity of the culture with 1% arabinose  present in the media was compared to the latter. Results of a representative experiments are shown below.
+[[Image:Tina_univ_sistem_1.jpg|center|thumb|800px|'''Figure: HivC, Gli1, Zif268, Jazz, Blues, PBSII and TAL bind to their corresponding DNA binding sites.''' In all constructs tested, the beta-galactosidase activity decreased with addition of arabinose, which induces the transcription of the DNA binding protein. These results show that all of the tested DNA binding proteins bind to their specific operator sequences.]]