Isolating Plasmid from Cells (Miniprep)

From 2008.igem.org

(Difference between revisions)
(New page: * Pellet overnight culture by centrifuging 13,000g for 10 minutes. * Pipette out supernatent and discard. * Add 250μl resuspension buffer R3 and mix by pipetting up and down. * Transfer t...)
 
(7 intermediate revisions not shown)
Line 1: Line 1:
 +
{{:Team:Newcastle University/Header}}
 +
{{:Team:Newcastle University/Template:UnderTheProtocol|page-title=[[Isolating Plasmid from Cells (Miniprep)]]}}
 +
 +
* Pellet overnight culture by centrifuging 13,000g for 10 minutes.
* Pellet overnight culture by centrifuging 13,000g for 10 minutes.
* Pipette out supernatent and discard.
* Pipette out supernatent and discard.
 +
[[Image:Centrifuge.jpg|thumb|right|300px|One of the centrifuges in our lab.]]
* Add 250μl resuspension buffer R3 and mix by pipetting up and down.
* Add 250μl resuspension buffer R3 and mix by pipetting up and down.
* Transfer to capped tubes.
* Transfer to capped tubes.
Line 10: Line 15:
* Centrifuge 13,000g for 1 minute. Discard supernatent.
* Centrifuge 13,000g for 1 minute. Discard supernatent.
* Add 700μl wash buffer W9 (with ethanol).
* Add 700μl wash buffer W9 (with ethanol).
-
* Centrifuge 13,000g for 1 minute. Discard superantent.
+
* Centrifuge 13,000g for 1 minute. Discard supernatent.
* Centrifuge 13,000g for 1 minute to remove all liquid. Discard any remaining supernatent and recovery tube.
* Centrifuge 13,000g for 1 minute to remove all liquid. Discard any remaining supernatent and recovery tube.
* Place spin column in new recovery tube.
* Place spin column in new recovery tube.

Latest revision as of 15:59, 28 October 2008

Bugbuster-logo-red.png
Ncl uni logo.jpg


Newcastle University

GOLD MEDAL WINNER 2008

Home Team Original Aims Software Modelling Proof of Concept Brick Wet Lab Conclusions


Home >> Wet Lab >> Protocols >> Isolating Plasmid from Cells (Miniprep)


  • Pellet overnight culture by centrifuging 13,000g for 10 minutes.
  • Pipette out supernatent and discard.
One of the centrifuges in our lab.
  • Add 250μl resuspension buffer R3 and mix by pipetting up and down.
  • Transfer to capped tubes.
  • Add 250μl lysis buffer L7 and mix by inverting tube 5 times.
  • Incubate for 5 minutes at room temperature.
  • Add 350μl precipitation buffer. Invert until mixture is homogenous.
  • Centrifuge 13,000g for 10 minutes. Place spin column into recovery tube.
  • Load supernatent into spin column and discard capped tube.
  • Centrifuge 13,000g for 1 minute. Discard supernatent.
  • Add 700μl wash buffer W9 (with ethanol).
  • Centrifuge 13,000g for 1 minute. Discard supernatent.
  • Centrifuge 13,000g for 1 minute to remove all liquid. Discard any remaining supernatent and recovery tube.
  • Place spin column in new recovery tube.
  • Add 100μl TE buffer or MilliQ H2O.
  • Incubate for 1 minute at room temperature.
  • Centrifuge 13,000g for 2 minutes. The supernatent in the recovery tube should contain isolated plasmid.
  • Discard spin column and store plasmid at -20°C.