Alternatives to Dextran Sulphate

Chris LaRosa plarosa1 at
Thu Mar 2 06:16:08 EST 2000

I never use dextran sulphate these days. I use a solution of 7(?) percent of SDS and
SSC.....Sorry but I forget the formula off the top of my head.   If you go to the
Biorad web site they have a protocol for ZetaProbe membranes.  I use the solutions
used for zetaprobe for northerns and southerns routinely with 32P labelled probes.
The solutions are less complex than in other protocols.

Livinus.Emebiri at wrote:

> Does anyone know if there are any alternatives to the use of Dextran Sulphate in
> hybridisation buffer of southern blots?
> Livinus
> ---

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