Biotinylated oligos won't bind to streptavidin beads.

Austin P. So (Hae-Jin) haejin at netinfo.ubc.caX
Wed Sep 13 19:59:59 EST 2000

what kind of beads are you using? what are the binding conditions you're employing?

Make sure that you don't have a huge excess of primer which would be preferentially captured by the
streptavidin...something I think is mentioned in the Dynabeads protocol sheets.

Working with these things are a bitch, no?

Zhongtang Yu wrote:

> I am trying to use streptadivin beads to capture short PCR product that has a biotin at one of the
> 5'end, but the DNA remained in the supernatant. The biotinylated primer was made and checked by a
> company, and they did two tests showing the primer has biotin label. I used 1mg beads that can bind
> up to 200 pmole of biotinylated oligos. My PCR product is only 120bp. Does anyone have such
> experience or any suggestion? Any helpful info will be appreciated.

Austin P. So (Hae Jin)

Biotechnology Laboratory
University of British Columbia

E-mail: haejin at (under construction)

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