In article <mrtour-1310941204460001 at mac-133.k-g2.ski.mskcc.org>,
michelle tourigny <mrtour at stud.med.cornell.edu> wrote:
>I have been trying to isolate nuclei from lymph or spleen for a DNase 1
>hypersensivity assay and with either 0.5% or 1% NP-40 incubation at 4
>degrees C I have been unable to have consistent lysing or nuclei. Any
>suggestions?
>>Michelle Tourigny, grad student
>>--
>Michelle Tourigny
>mrtour at stud.med.cornell.edu>>Elmo says: "But I'm not a scary monster"
You may want to try disrupting the cells with a Dounce Homogenizer in a
hypotonic solution. This is how I always used to prepare nuclear extracts
(although I was not using lymphocytes). This is a pretty standard procedure,
and there is a protocol in Current Protocols in Molecular Biology in the
section on preparing nuclear extracts.
BioKen
--
Ken Frauwirth (MiSTie #33025) _ _
frauwirt at mendel.berkeley.edu |_) * |/ (_ |\ |
Dept. of Molec. & Cell Bio. |_) | () |\ (_ | \|
Univ. of Cal., Berkeley I had a .sig, but I broke it.
