Team:Paris/August 29

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(Difference between revisions)
(Cloning of EnvZ*)
(Cloning of EnvZ*)
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==Transformation of E. coli DH5 alpha competent cells==
==Transformation of E. coli DH5 alpha competent cells==
-
- defrosing of the cells on ice
+
*defrosing of the cells on ice
-
<br>- adding of 5 µL of ligation products in 100 µL of competent cells in 14 mL falcon polypropylene tubes
+
*adding of 5 µL of ligation products in 100 µL of competent cells in 14 mL falcon polypropylene tubes
-
<br>- 30 min on ice
+
*30 min on ice
-
<br>- thermal schock of 45 s at 42°C
+
*thermal schock of 45 s at 42°C
-
<br>- 2 min on ice
+
*2 min on ice
-
<br>- adding of 900 µL of SOC
+
*adding of 900 µL of SOC
-
<br>- contrifugation 5 min 6000 rpm
+
*contrifugation 5 min 6000 rpm
-
<br>- removal of 800 µL
+
*removal of 800 µL
-
<br>- plating the 200 µL left on LB + amplicilline
+
*plating the 200 µL left on LB + amplicilline
-
<br>- overnight incubation at 37°C
+
*overnight incubation at 37°C

Revision as of 18:04, 29 August 2008

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Contents

Cloning of EnvZ*

Concentration measurement

DNA concentration A260 / A2801
D159 (EnvZ*) 9 µg/mL 1,59
D116 (pSB1A2) 13 µg/mL 1,29

Ligation and transformation

control insert / vector ratio
3 / 1 4 / 1
D159 (EnvZ*) 0 8,7 µL 11,6 µL
D116 (pSB1A2) 2 µL 2 µL 2 µL
T4 DNA ligase 10X buffer 2 µL 2 µL 2 µL
T4 DNA ligase 1 µL 1 µL 1 µL
H2O (qsp 20 µL) 15 µL 6,3 µL 3,4 µL
  • 10 min at room temperature
  • 7 hours at about 16°C in the room tagged "danger azote liquide"

Transformation of E. coli DH5 alpha competent cells

  • defrosing of the cells on ice
  • adding of 5 µL of ligation products in 100 µL of competent cells in 14 mL falcon polypropylene tubes
  • 30 min on ice
  • thermal schock of 45 s at 42°C
  • 2 min on ice
  • adding of 900 µL of SOC
  • contrifugation 5 min 6000 rpm
  • removal of 800 µL
  • plating the 200 µL left on LB + amplicilline
  • overnight incubation at 37°C