Dilution of adapter oligos v. 2.0 6/15/2000

1) If there are no single stranded oligos in the -20 freezer they need to be ordered from IDT Technologies. See the page on doing this.

2) To make the adapters there are four oligonucleotides:

Name Sequence 5'-3'
Eco A1 CTC GTA GAC TGC GTA CC
Eco A2 AAT TGG TAC GCA GTC TAC
Mse A1 GAC GAT GAG TCC TGA G
Mse A2 TAC TCA GGA CTC AT

*Note that these primers do not have a Phosphorylated tail*

3) If the oligos are new and dried, then you must dissolve them in 1X STE (10mM Tris pH 8.0; 50mM NaCl; 1mM EDTA) to a high concentration of 650 uM (uM is the same as pmoles/ ul.

Annealing oligos to make adapter

1)  Put equimolar amounts of each Eco oligo into one 0.5 ml tube, and each Mse oligo into another 0.5 ml tube.

2)  Heat the tubes to 95C in a heat block for 3 min.

3)  Remove the entire block with the tubes and put it on the bench top to cool to room temperature slowly.

4)  Now you have a concentrated stock of annealed adapter at 325 uM.  To make the working concentration dilute the Mse adapter to 50uM and the Eco adapter to 5uM.

4)  Store at -20 C