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Fluorescein Redirects a Ruthenium−Octaarginine Conjugate to the Nucleus
Open accessAbstract
The cellular uptake and localization of a Ru-octaarginine conjugate with and without an appended fluorescein are compared. The inherent luminescence of the Ru(II) dipyridophenazine complex allows observation of its uptake without the addition of a fluorophore. Ru-octaarginine-fluorescein stains the cytosol, nuclei, and nucleoli of HeLa cells under conditions where the Ru-octaarginine conjugate without fluorescein shows only punctate cytoplasmic labeling. At higher concentrations, however, Ru-octaarginine without the fluorescein tag does exhibit cytoplasmic, nuclear, and nucleolar staining. Attaching fluorescein to Ru-octaarginine lowers the threshold concentration required for diffuse cytoplasmic labeling and nuclear entry. Hence, the localization of the fluorophore-bound peptide cannot serve as a proxy for that of the free peptide.
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Cellular processing of platinum anticancer drugs
Wang, D., & Lippard, S. J. (2005) · Nature Reviews Drug Discovery · doi:10.1038/nrd1691 · Cited by 3,801
Cited by
Gill, M. R., & Thomas, J. A. (2012) · Chemical Society Reviews · doi:10.1039/c2cs15299a · Cited by 747
You, Y., & Nam, W. (2012) · Chemical Society Reviews · doi:10.1039/c2cs35171d · Cited by 668
The path for metal complexes to a DNA target
Komor, A. C., & Barton, J. K. (2013) · Chemical Communications · doi:10.1039/c3cc00177f · Cited by 384
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Metadata
- Authors
- Puckett, C. A., & Barton, J. K.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-06-08
- Volume
- 131
- Issue
- 25
- Pages
- 8738-8739
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2021199155
- Cited by
- 255
- References
- 1
- FWCI
- 10.74
- Type
- journal article
- Language
- en
- Open access
- green
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- Puckett, C. A., & Barton, J. K. (2009). Fluorescein Redirects a Ruthenium−Octaarginine Conjugate to the Nucleus. Journal of the American Chemical Society. https://doi.org/10.1021/ja9025165
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