Fluorescence of yeast vitally stained with ethidium bromide and propidium iodide.
نویسندگان
چکیده
منابع مشابه
The DNA intercalators ethidium bromide and propidium iodide also bind to core histones
Eukaryotic DNA is compacted in the form of chromatin, in a complex with histones and other non-histone proteins. The intimate association of DNA and histones in chromatin raises the possibility that DNA-interactive small molecules may bind to chromatin-associated proteins such as histones. Employing biophysical and biochemical techniques we have characterized the interaction of a classical inte...
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Adriamycin (ADR) and N-trifluoroacetyladriamycin-14-valerate, respectively, inhibit and enhance the nuclear fluorescence of cells stained with propidium iodide for DNA per cell estimation by flow cytometry. In cells incubated with ADR, the reduction in fluorescence is gradually manifested due to the slow intracellular drug transport. In contrast the effect of N-trifluoroacetyladriamycin-14-vale...
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The mechanism of the enhancement of the fluorescence of ethidium bromide on binding to double helical RNA and DNA has been investigated. From an examination of the effect of different solvents on the fluorescence lifetime, quenching of fluorescence by proton acceptors, and the substantial lengthening of lifetime observed upon deuteration of the amino protons, regardless of the medium, we conclu...
متن کاملEvaluation of HLA-DR typing by ethidium bromide fluorescence.
Sixty individuals were typed for D-related human leukocyte antigens (HLA-DR) using two methods: the standard eosin exclusion method and a recently described one-color ethidium bromide technique. As a result, 88 of the 90 DR antigens detected by the standard technique were also detected by one-color fluorescence (sensitivity = 97.8 percent). However, of the 99 DR antigens identified by ethidium ...
متن کاملRapid quantitation of mRNA species in ethidium bromide-stained gels of competitive RT-PCR products.
A rapid method for quantifying the low-abundant mRNAs of the low density lipoprotein receptor and the 3-hydroxy-3-methylglutaryl coenzyme A reductase by competitive polymerase chain reaction is presented. This approach requires neither special labeling nor blotting procedures. For each analysis, a defined amount of total cellular RNA is co-reverse transcribed and co-amplified with a titration s...
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ژورنال
عنوان ژورنال: Journal of Histochemistry & Cytochemistry
سال: 1981
ISSN: 0022-1554,1551-5044
DOI: 10.1177/29.1.6162881