Notes
1. This oligonucleotide will change the sequence of the
m4b-CMV construct
(Nucleotide Positions 3938-3943) from 5'-AGT ACT-3'(the ScaI
recognition
sequence) to 5'-AAT ACT-3'. This is achieved by using a primer
that
complements
the sense strand to change the anti-sense strand sequence to
5'-AGT ATT-3'
2. Alternatively, you can use T4 DNA ligase buffer. T4 Polynucleotide
Kinase (PNK) has 100% activity in T4 DNA ligase buffer, which contains
10mM ATP in the 10X stock. The PNK buffer does not contain ATP. Add
10 mM ATP for phosphorylation reactions and [32P] ATP for
radiolabeling the oligonucleotide.
3. These are trans oligos. One will remove the StuI site that is near the
coding sequence (about 8 bp upstream) and generate a ScaI site in its
place (Stu>Sca). The other oligo will remove the ScaI site and create a
StuI site in its place (Sca>Stu).
4.