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Single-strand breaks in supercoiled DNA induced by vacuum-UV radiation in aqueous solution

Conference:

Abstract

The induction of single-strand breaks in the DNA of plasmid pBR 322 by vacuum-UV radiation above 145 nm in aqueous solutions was studied in relation to the production of OH-radicals in water. The similarity and dissimilarity were examined on the wavelength dependence between the two effects. The maximum of single strand breaks at 150 nm could be explained by the action of OH-radicals derived from direct water photolysis: the maximum at 180 nm remains unexplained. There was no indication that the direct absorption of photon by the DNA molecule plays an important role in the production of single-strand breaks.
Publication Date:
Sep 01, 1986
Product Type:
Conference
Report Number:
CONF-8510268-
Reference Number:
GBN-87-000069; EDB-88-021412
Resource Relation:
Journal Name: Photochem. Photobiol.; (United Kingdom); Journal Volume: 44:3; Conference: United States-Japan joint seminar on ultraviolet photobiology and spectroscopy, Upton, NY, USA, 2 Oct 1985
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; DNA; FAR ULTRAVIOLET RADIATION; AQUEOUS SOLUTIONS; FREQUENCY DEPENDENCE; HYDROXYL RADICALS; PLASMIDS; RESPONSE MODIFYING FACTORS; STRAND BREAKS; CELL CONSTITUENTS; DISPERSIONS; ELECTROMAGNETIC RADIATION; MIXTURES; NUCLEIC ACIDS; ORGANIC COMPOUNDS; RADIATIONS; RADICALS; SOLUTIONS; ULTRAVIOLET RADIATION; 560120* - Radiation Effects on Biochemicals, Cells, & Tissue Culture
OSTI ID:
5623927
Research Organizations:
International Christian Univ., Osawa, Tokyo, JP. Dept. of Physics; Rikkyo Univ., Tokyo, Japan. Dept. of Physics; Tsukuba Univ., Ibaraki, JP. Inst. of Biological Sciences; Tokyo Univ., JP. Inst. of Physics
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: PHCBA
Submitting Site:
GBN
Size:
Pages: 397-400
Announcement Date:
May 13, 2001

Conference:

Citation Formats

Takakura, Kaoru, Ishikawa, Mitsuo, Hieda, Kotaro, Kobayashi, Katsumi, Ito, Atsushi, and Ito, Takashi. Single-strand breaks in supercoiled DNA induced by vacuum-UV radiation in aqueous solution. United Kingdom: N. p., 1986. Web.
Takakura, Kaoru, Ishikawa, Mitsuo, Hieda, Kotaro, Kobayashi, Katsumi, Ito, Atsushi, & Ito, Takashi. Single-strand breaks in supercoiled DNA induced by vacuum-UV radiation in aqueous solution. United Kingdom.
Takakura, Kaoru, Ishikawa, Mitsuo, Hieda, Kotaro, Kobayashi, Katsumi, Ito, Atsushi, and Ito, Takashi. 1986. "Single-strand breaks in supercoiled DNA induced by vacuum-UV radiation in aqueous solution." United Kingdom.
@misc{etde_5623927,
title = {Single-strand breaks in supercoiled DNA induced by vacuum-UV radiation in aqueous solution}
author = {Takakura, Kaoru, Ishikawa, Mitsuo, Hieda, Kotaro, Kobayashi, Katsumi, Ito, Atsushi, and Ito, Takashi}
abstractNote = {The induction of single-strand breaks in the DNA of plasmid pBR 322 by vacuum-UV radiation above 145 nm in aqueous solutions was studied in relation to the production of OH-radicals in water. The similarity and dissimilarity were examined on the wavelength dependence between the two effects. The maximum of single strand breaks at 150 nm could be explained by the action of OH-radicals derived from direct water photolysis: the maximum at 180 nm remains unexplained. There was no indication that the direct absorption of photon by the DNA molecule plays an important role in the production of single-strand breaks.}
journal = {Photochem. Photobiol.; (United Kingdom)}
volume = {44:3}
place = {United Kingdom}
year = {1986}
month = {Sep}
}