Nucleic Acids Research, Vol 25, Issue 14 2945-2946, Copyright © 1997 by Oxford University Press
AE Kiltie and AJ Ryan
Pulsed field gel electrophoresis (PFGE) is widely used to measure DNA
double strand breaks (dsb). The DNA of cultured cells can be prelabelled
with radioactivity, which helps greatly in detection and quantitation of
DNA dsb. However, this approach cannot be used with non- cycling cells from
biopsy material. We describe a method which uses SYBR Green I to stain DNA
in dried agarose gels. DNA is detected and analysed using readily available
camera equipment and image analysis software. This method is as sensitive
as [3H]thymidine prelabelling of cells and allows DNA dsb to be measured
simply and economically in non- cycling cells.
ARTICLES
SYBR Green I staining of pulsed field agarose gels is a sensitive and inexpensive way of quantitating DNA double-strand breaks in mammalian cells
Department of Experimental Radiation Oncology, Paterson Institute for Cancer Research, Manchester M20 4BX, UK.
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