rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
2
|
pubmed:dateCreated |
1989-10-10
|
pubmed:abstractText |
DNA damage inflicted by the alkylating agent N-methyl-N'-nitro-N-nitrosoguanidine, or by UV254nm, stimulated the catabolism of protein-bound poly(ADP-ribose) in the chromatin of cultured hepatocytes. The stimulation was highest at the largest doses of DNA-damaging treatment. As a consequence, the half-life of ADP-ribosyl polymers may drop to less than 41 s. This rapid turnover contrasts with the slow catabolism of a constitutive fraction of polymers exhibiting a half-life of 7.7 h. Our data suggest that post-incisional stimulation of poly(ADP-ribose) biosynthesis in DNA-excision repair is coupled with an adaptation of poly(ADP-ribose) catabolism in mammalian cells.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Sep
|
pubmed:issn |
0027-5107
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
218
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
67-74
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:2770765-Animals,
pubmed-meshheading:2770765-Benzamides,
pubmed-meshheading:2770765-Cells, Cultured,
pubmed-meshheading:2770765-Chromatin,
pubmed-meshheading:2770765-DNA Damage,
pubmed-meshheading:2770765-Kinetics,
pubmed-meshheading:2770765-Liver,
pubmed-meshheading:2770765-Male,
pubmed-meshheading:2770765-Methylnitronitrosoguanidine,
pubmed-meshheading:2770765-Nucleoside Diphosphate Sugars,
pubmed-meshheading:2770765-Poly Adenosine Diphosphate Ribose,
pubmed-meshheading:2770765-Radiation-Sensitizing Agents,
pubmed-meshheading:2770765-Rats,
pubmed-meshheading:2770765-Rats, Inbred Strains,
pubmed-meshheading:2770765-Ultraviolet Rays
|
pubmed:year |
1989
|
pubmed:articleTitle |
Poly(ADP-ribose) catabolism in mammalian cells exposed to DNA-damaging agents.
|
pubmed:affiliation |
University of Zürich-Tierspital, Institute of Pharmacology and Biochemistry, Switzerland.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|