Team:EPF-Lausanne/Notebook/11 September 2012

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Ligation of melanopsin into psb1-c3

ligation of psb1-c3 with melanopsin pcr amplicon. both digested w/ notI

ligation of psb1-c3 with melanopsin pcr amplicon. both digested w/ ecoRI and speI




Protocol: Ligation


Ligation is a method of combining several DNA fragments into a single plasmid. This is often the step following a PCR (and a PCR cleanup) or a gel extraction. You can also do a "dirty" ligation, where you follow a certain number of digestions directly by a ligation.

  1. Download the following spreadsheet : File:Team-EPF-Lausanne Ligation.xls
  2. Fill in the pink areas with the vector and fragment concentration, their size and the ratio.
  3. Add all the suggested ingredients order in a microcentrifuge tube, in the order they appear.
  4. Ligate for 2 hours at 14ºC.
  5. Immediately transform competent bacteria with the ligation product.

Note: This protocol hasn't been optimized for blunt-end ligation (though it might still work).


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