Team:EPF-Lausanne/Our Project/Data

From 2011.igem.org

(Difference between revisions)
(T7 Promoter Variants)
Line 33: Line 33:
-
=== pSB3K1 Pconst-TetR ===
+
=== Readout system - TetR and RFP ===
-
 
+
-
''Description''
+
-
 
+
-
This plasmid is the intermediary  step before having the complete TetR plasmid. Here we only added TetR under constitutive promoter, wanting to add LacI under Ptet afterwards with a second Gibson. See the "assembly" page for more details.
+
-
 
+
-
 
+
-
Parts assembled:
+
-
* Plasmid backbone: pSB3K1 from ETHZ 2007 [http://partsregistry.org/wiki/index.php?title=Part:pSB3K1 "pSB3K1"] (taken from the delivery plate)
+
-
* Pconst: J23116 from Berkeley 2006 [http://partsregistry.org/Part:BBa_J23116 "j23116"] (sequence copied into our primers)
+
-
* RBS (B0034?) and spacer: (sequence copied into our primers)
+
-
* TetR: [https://static.igem.org/mediawiki/2011/b/b0/EPFL_TetR_sequence.txt "TetR sequence"] (623 bp) The sequence lacks a stop codon, we added TAA with our primers
+
 +
The first readout system is composed of TetR with a constitutive promoter, followed by RFP with a pTet promoter. If TetR '''binds''' to pTet, then RFP is ''' repressed'''. The plasmids used here are pSB3K1 pConst-TetR and J61002 Ptet-RFP. This readout system is convenient for fluorescence detection experiments, but it would not be suited for using the lysis cassette as the reporter gene is being repressed upon TetR-pTet interaction.
''Sequence''
''Sequence''
Line 65: Line 55:
''ATC induction''
''ATC induction''
-
The platereader experiment was run for 12h, using 0-0.1-5-25-200-300-800-1000-1200-1500 nM/ul final concentrations of ATC. The cells were cotransformed with pSB3K1 Pconst-TetR and J61002 Ptet-RFP, to use the fluorescent protein as a readout for TetR inactivation by ATC. All the concentrations were tested on 4 different cultures, shown in the next graphs:
 
-
 
-
[[File:EPFL_pSB_TetR_J6_Ptet_RFP_col1.jpg|200px]]
 
-
[[File:EPFL_pSB_TetR_J6_Ptet_RFP_col2.jpg|200px]]
 
-
[[File:EPFL_pSB_TetR_J6_Ptet_RFP_col3.jpg|200px]]
 
-
[[File:EPFL_pSB_TetR_J6_Ptet_RFP_col4.jpg|200px]]
 
''Dose-response''
''Dose-response''
-
These data are coming from the same experiment; they show the saturation value of RFP expression for each ATC concentration. The values were averaged over the 4 different cell cultures.
 
-
 
-
[[File:EPFL_pSB_TetR_J6_Ptet_RFP_dose-resp.jpg]]
 
=== pSB3K1 Pconst-TetR Ptet-LacI ===
=== pSB3K1 Pconst-TetR Ptet-LacI ===

Revision as of 17:48, 17 September 2011