Team:Paris/August 29

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(Difference between revisions)
(→Cloning of EnvZ*)
(→Cloning of EnvZ*)
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*2 min on ice
*2 min on ice
*adding of 900 µL of SOC
*adding of 900 µL of SOC
 +
*1 hour at 37°C
*contrifugation 5 min 6000 rpm
*contrifugation 5 min 6000 rpm
*removal of 800 µL
*removal of 800 µL
*plating the 200 µL left on LB + amplicilline
*plating the 200 µL left on LB + amplicilline
*overnight incubation at 37°C
*overnight incubation at 37°C

Revision as of 18:32, 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

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
  • 1 hour at 37°C
  • contrifugation 5 min 6000 rpm
  • removal of 800 µL
  • plating the 200 µL left on LB + amplicilline
  • overnight incubation at 37°C
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