PMID: 7019353Jul 1, 1981Paper

Photoreactivation in bacteria and in skin

The Journal of Investigative Dermatology
B M Sutherland

Abstract

In many procaryotic and eucaryotic cells, photoreactivating enzyme mediates light-dependent repair of UV-induced damage: the enzyme binds to a pyrimidine dimer in DNA, and, on absorption of a photon (300-600 nm), specifically monomerizes the dimer, thus repairing the DNA. Photoreactivating enzyme has been found in human tissues and human cells in culture; human cells in culture can photoreactivate cellular dimers, and can mediate photoreactivation of Herpes (human fibroblasts) and Epstein-Barr virus (human leukocytes). Measurements of pyrimidine dimer formation and repair in human skin indicate that detectable numbers of dimers are formed at 1 minimal erythemal dose, that the dimers are rapidly removed in skin kept in the absence of light, and they are more rapidly removed when the skin is exposed to visible light.

References

Apr 17, 1975·Nature·E K WagnerB M Sutherland
Feb 1, 1979·Photochemistry and Photobiology·P M AcheyR B Setlow
Oct 1, 1979·Photochemistry and Photobiology·T Chiang, C S Rupert
Dec 1, 1972·The Journal of Investigative Dermatology·I WillisJ Epstein
Mar 8, 1974·Nature·B M Sutherland
Sep 1, 1974·The Journal of Investigative Dermatology·C Y YingM A Pathak
Feb 1, 1972·Photochemistry and Photobiology·M A PathakU Güngerich
Jun 1, 1965·Proceedings of the National Academy of Sciences of the United States of America·J K SetlowF J Bollum
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Feb 1, 1949·Proceedings of the National Academy of Sciences of the United States of America·A Kelner
May 1, 1975·Biophysical Journal·J C Sutherland, B M Sutherland

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Citations

Aug 1, 1993·Experimental Dermatology·A TanewH Hönigsmann
Jun 1, 1982·Photochemistry and Photobiology·E D Jacobson, K Krell

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