Anchor PCR question

[Bob Corell]

Hi All,
   I am about to do some anchor PCR.  The target RNA may be relatively
short compared to the first strand oligo primer (not oligo-dT).  I need
to get rid of the first strand primer before I can efficiently tail
my cDNA for the anchor PCR.  Since I can't rely on differential
precipitation based on size, I need a way to get rid of the oligo
without losing my cDNA.  Any ideas?  References please...

   I've heard there is a way to precipitate double-stranded species (i.e.
the cDNA/RNA duplex) without the single stranded oligonucleotide
primers?  Is that true?

   Thanks for your help.

Bob Corell
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