Journal
JOURNAL OF FLUORESCENCE
Volume -, Issue -, Pages -Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10895-023-03343-8
Keywords
DNA staining dyes; Ethidium bromide; Propidium iodide; SYBR safe; SYBR green I; Eva Green; DAPI
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The properties of six commonly used, commercially available, fluorescent dyes were compared in staining right-handed B-DNA and left-handed Z-DNA. All showed different degree of fluorescence turn-on in the presence of B-DNA, but very little in the presence of Z-DNA. The optimal range of dye-DNA ratios of DNA was determined. While these dyes do not provide a turn-on type probe for Z-DNA, staining between B- and Z-DNA using dyes such as SYBR Green I was shown to be useful in tracking the kinetics of conformational changes between these two forms of DNA. Finally, SYBR Green I showed unique circular dichroism patterns in 4 M NaCl that change in the presence of double stranded DNA, both in the visible and UV range.
The properties of six commonly used, commercially available, fluorescent dyes were compared in staining right-handed B-DNA and left-handed Z-DNA. All showed different degree of fluorescence turn-on in the presence of B-DNA, but very little in the presence of Z-DNA. The optimal range of dye-DNA ratios of DNA was determined. While these dyes do not provide a turn-on type probe for Z-DNA, staining between B- and Z-DNA using dyes such as SYBR Green I was shown to be useful in tracking the kinetics of conformational changes between these two forms of DNA. Finally, SYBR Green I showed unique circular dichroism patterns in 4 M NaCl that change in the presence of double stranded DNA, both in the visible and UV range.
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