Literature DB >> 2173013

Enhancement of topoisomerase I-mediated unwinding of supercoiled DNA by the radioprotector WR-33278.

E A Holwitt1, E Koda, C E Swenberg.   

Abstract

The radioprotector WR-33278, the disulfide of WR-1065 (N-(2-mercaptoethyl)-1,3-diaminopropane), is shown to stimulate eukaryotic topoisomerase I unwinding of negatively supercoiled DNA. This observation suggests the possibility that some protection may be conferred to DNA either by a decrease in its supercoiled state or by altering directly other enzymatic processes. This is the first report of a radioprotective compound stimulating an enzyme involved in DNA structure and synthesis.

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Year:  1990        PMID: 2173013

Source DB:  PubMed          Journal:  Radiat Res        ISSN: 0033-7587            Impact factor:   2.841


  2 in total

1.  Radiation damage and radioprotectants: new concepts in the era of molecular medicine.

Authors:  M I Koukourakis
Journal:  Br J Radiol       Date:  2012-01-31       Impact factor: 3.039

Review 2.  Pharmacologic approaches to protection against radiation-induced lethality and other damage.

Authors:  J F Weiss
Journal:  Environ Health Perspect       Date:  1997-12       Impact factor: 9.031

  2 in total

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