Partial RE digestion - EtBr method...

[Chris Jones & Deirdre Sumpter]

In article <SIMEON.9910061339.A at pclabsetup.lawrence.edu>,
christopher.a.brodale at lawrence.edu wrote:

>         What exactly is the EtBr method and/or where can I 
> locate a general EtBr partial RE digestion protocol?

You're probably thinking of the one described in PNAS (I think) quite a
few years ago now; the authors' names escape me, but I think one was
"Fred" something. Anyway, the idea is that you incubate your digest with
EtBr in the mix. As the enzyme cuts the DNA, the EtBr can slip in and
intercalate, preventing further cleavages. You have to run the reaction at
several different concentrations to optimize it, but it's not difficult.

Chris Jones

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