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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1995-2-23
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pubmed:abstractText |
Adenosine diphosphate (hydroxymethyl)pyrrolidinediol (ADP-HPD), an NH analog of ADP-ribose, was chemically synthesized and shown to be a potent and specific inhibitor of poly-(ADP-ribose) glycohydrolase. The synthetic starting material was the protected pyrrolidine, (2R,3R,4S)-1-(benzyloxycarbonyl)-2-(hydroxymethyl)pyrrolidine-3,4-diol 3,4-O-isopropylidene acetal. This starting pyrrolidine was phosphorylated, coupled to adenosine 5'-monophosphate, and deprotected, yielding the title inhibitor ADP-HPD. ADP-HDP was shown to inhibit the activity of poly(ADP-ribose) glycohydrolase by 50% (IC50) at 0.12 microM, a value 1000-times lower than the IC50 of the product, ADP-ribose. The NAD glycohydrolase from Bungarus fasciatus venom was less sensitive to inhibition by ADP-HPD, exhibiting an IC50 of 260 microM. ADP-HPD did not inhibit either poly(ADP-ribose) polymerase or NAD:arginine mono(ADP-ribosyl)-transferase A at inhibitor concentrations up to 1 mM. At low ADP-HPD concentration, inhibition was therefore shown to be highly specific for poly(ADP-ribose) glycohydrolase, the hydrolytic enzyme in the metabolism of ADP-ribose polymers.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Adenosine Diphosphate,
http://linkedlifedata.com/resource/pubmed/chemical/Enzyme Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Glycoside Hydrolases,
http://linkedlifedata.com/resource/pubmed/chemical/NAD Nucleosidase,
http://linkedlifedata.com/resource/pubmed/chemical/poly ADP-ribose glycohydrolase
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0022-2623
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
20
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pubmed:volume |
38
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
389-93
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7830282-Adenosine Diphosphate,
pubmed-meshheading:7830282-Animals,
pubmed-meshheading:7830282-Cattle,
pubmed-meshheading:7830282-Enzyme Inhibitors,
pubmed-meshheading:7830282-Glycoside Hydrolases,
pubmed-meshheading:7830282-Kinetics,
pubmed-meshheading:7830282-NAD+ Nucleosidase,
pubmed-meshheading:7830282-Thymus Gland
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pubmed:year |
1995
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pubmed:articleTitle |
Specific inhibition of poly(ADP-ribose) glycohydrolase by adenosine diphosphate (hydroxymethyl)pyrrolidinediol.
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pubmed:affiliation |
Department of Medicinal and Biological Chemistry, University of Toledo, Ohio 43606.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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