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poor in situ banding

Yuji Kageyama kageyama at BCM.TMC.EDU
Tue Feb 2 14:41:45 EST 1999

At 7:30 AM 2/1/99, Martin Cann wrote:
>        After development of the signal (I'm using hrp-conjugated 
> streptavidin and DAB)and Giemsa staining, I get very poor 
> banding patterns on the chromsomes. 

Why don't you try DAPI/Hoechst staining instead of Giemsa?

It is much clearer, though weakened by HRP staining.  Just one 
drop of 1ug/ml of DAPI/Hoechst in PBS to your slides right 
before microscopic observation is enough for clear banding.  

Although banding siganl would be much reduced, you COULD 
try even for previously Giemsa-stained slides.

Best wishes,

Yuji Kageyama
Baylor College of Medicine

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