>> I'm doing recombinant PCR to insert a fragment of 30 bps into a known
>1kb sequence. Of course, in an effort to minimize costs, I assumed that 5
>bp's overlap would be quite enough. What is the minimum number of bp's
>that still works nicely? Has anyone tried with just 5 bp's over a total
>final PCR product of nearly 1 kb? Thanx for any info....
>barry at sccs.swarthmore.edu
I have used 9bp in each direction with success. 5bp maybe getting kinda short.
Assuming 50%GC, a 5bp overlap would have Tm ~30C. Its worth a try, but you may
have to play with your annealling conditions a bit (Temp, Mg++, etc.) Good luck.
Program in Immunology
Washington University - St Louis
brett at borcim.wustl.edu
"I own my own pet virus. I get to pet and name her." - Cobain