Annealing Oligonucleotides

  • Determine the concentration of your oligonucleotide solutions. Dissolve lyophilized oligonucleotide in water or TE and verify concentration by determining the A260 value of duplicate dilutions. Use the conversion factor printed on the oligonucleotide label to determine nanomole/A260 unit
  • Add the following components together:
STOCKFINAL CONCENTRATION
Oligonucleotide 1100 nanomoles/milliliter
Oligonucleotide 2100 nanomoles/milliliter
Nuclease-free waterTo appropriate volume
  • Heat the oligo solution to a temperature 10° C higher than the calculated melting temperature. Maintain the temperature for 10 minutes. Remove the solution from the heating block/water bath and allow it to cool slowly to room temperature on the bench (approximately 1 hour).
  • Store the annealed oligos at -20° C.

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