Paris/July 14

From 2007.igem.org

(Difference between revisions)
(PCRs)
(PCRs)
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== PCRs ==
== PCRs ==
-
{{Paris_PCR| Title = Lox71-FtsA-FtsZ-1  
+
{{Paris_PCR_0| Title = Lox71-FtsA-FtsZ-1  
|Name= Lox71-FtsA-FtsZ-1  
|Name= Lox71-FtsA-FtsZ-1  
|Annealing= 55°C
|Annealing= 55°C
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|dNTP= 10µM 1µL
|dNTP= 10µM 1µL
|n_oligoF= 3 Lox71-FtsA-F
|n_oligoF= 3 Lox71-FtsA-F
-
|v_oligoF= 10µM 2.5µL
+
|v_oligoF= 2.5µL
|n_oligoR= 4 DEcoR1-FtsZ-R
|n_oligoR= 4 DEcoR1-FtsZ-R
-
|v_oligoR= 10µM 2.5µL
+
|v_oligoR= 2.5µL
|water= 34µL
|water= 34µL
|pol= Phusion 0.5µL
|pol= Phusion 0.5µL
|DNA= toothpick in glycerol stock of MG1655
|DNA= toothpick in glycerol stock of MG1655
 +
|Size=
 +
|Success=
 +
|Image=
 +
|Band=
|}}
|}}
-
{{Paris_PCR| Title = FtsZ-2
+
{{Paris_PCR_0| Title = FtsZ-2
|Name= FtsZ-2
|Name= FtsZ-2
|Annealing= 55°C
|Annealing= 55°C
Line 76: Line 80:
|pol= Phusion 0.5µL
|pol= Phusion 0.5µL
|DNA= toothpick in glycerol stock of MG1655
|DNA= toothpick in glycerol stock of MG1655
 +
|Size=
 +
|Success=
 +
|Image=
 +
|Band=
|}}
|}}
-
{{Paris_PCR| Title = Lox66-DapAColi
+
{{Paris_PCR_0| Title = Lox66-DapAColi
|Name= Lox66-DapAColi
|Name= Lox66-DapAColi
|Annealing= 55°C
|Annealing= 55°C
Line 93: Line 101:
|pol= Phusion 0.5µL
|pol= Phusion 0.5µL
|DNA= toothpick in glycerol stock of MG1655
|DNA= toothpick in glycerol stock of MG1655
 +
|Size=
 +
|Success=
 +
|Image=
 +
|Band=
|}}
|}}

Revision as of 16:48, 18 July 2007

Contents

What to do ?

  • Remove the plate of the transduction experiment and the transformation ones from the 37°C incubator (Upper-left shelf): If it has worked and if someones comes on Sunday:
    • isolation of the clones from the transduction on petri-dishes (LB+DAP+Erm+Citrate)
    • LB + antibio culture of the transformants (to make a glycerol stock and to do MiniPreps)
  • Make a gel (0.8%) and migrate the PCR products
  • Purify them
  • Do the assembly PCR

If enough time (we can also wait to have the plasmids to do everything at the same time):

  • Digestion of the purifications products with appropriate enzymes
  • Purification


What has been done

  • Several colonies of transduced MG1655 are obtained (transduction from dapA- strain w121):
    • Isolation of 10 different colonies on LB Citrate Erythro DAP plates


  • Seeding LB-Amp cultures of the following strains
    • DH5alpha transformed with the plasmid carrying the Biobrick pJ23100
    • DH5alpha transformed with the plasmid carrying the Biobrick B0015

these two ON cultures will allow us to perform (tomorrow):

    • Minipreps to isolate the plasmids carrying the biobricks
    • Glycerol stocks of the transformed strains


DGAT expressing E.coli

  • After transformation of DH5alpha E.coli with pKS::DGAT plasmid, a transformant clone was grown ON in LB Erythromycin medium

The culture (using a toothpick)was deposited on several solid media for growth:

either LB or M9 minimal medium. +/- IPTG (inducer of DGAT expression, dgat gene being carried by pKS::DGAT plasmid) +/- Nile Red (fat detection dye) +/- oleate at 2 different concentrations.

This experiment aims at finding out if E.coli cells that express DGAT from Acinetobacter can incorporate oleate (a fatty acid, catalyse the reaction between a fatty acid and diacyl glycerol and finally accumulate fat in the form of triglyceride.

PCRs

PCR : Lox71-FtsA-FtsZ-1
PCR Settings Buffer (5x) 5x 10µL Expected size
Annealing (°C) MgCl2 10µM 10µM 0µL
55°C dNTP 10µM 10µM 1µL Success
Time Elongation Oligo F 10µM 3 Lox71-FtsA-F 2.5µL
2m00' Oligo R 10µM 4 DEcoR1-FtsZ-R 2.5µL Image (click to enlarge)
Number cycles Water 34µL [[Image:|30px]]
30 Polymerase Phusion 0.5µL Band (0=ladder)
DNA toothpick in glycerol stock of MG1655
PCR : FtsZ-2
PCR Settings Buffer (5x) 5x 10µL Expected size
Annealing (°C) MgCl2 10µM 10µM 0µL
55°C dNTP 10µM 10µM 1µL Success
Time Elongation Oligo F 10µM 5 DEcoR1-FtsZ-F 10µM 2.5µL
2m00' Oligo R 10µM 2 FtsZ-R 10µM 2.5µL Image (click to enlarge)
Number cycles Water 34µL [[Image:|30px]]
30 Polymerase Phusion 0.5µL Band (0=ladder)
DNA toothpick in glycerol stock of MG1655
PCR : Lox66-DapAColi
PCR Settings Buffer (5x) 5x 10µL Expected size
Annealing (°C) MgCl2 10µM 10µM 0µL
55°C dNTP 10µM 10µM 1µL Success
Time Elongation Oligo F 10µM 6 Lox66-DapAColi-F 10µM 2.5µL
2m00' Oligo R 10µM 7 DapAColi-R 10µM 2.5µL Image (click to enlarge)
Number cycles Water 34µL [[Image:|30px]]
30 Polymerase Phusion 0.5µL Band (0=ladder)
DNA toothpick in glycerol stock of MG1655