rdf:type |
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lifeskim:mentions |
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pubmed:issue |
24
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pubmed:dateCreated |
2008-11-25
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pubmed:abstractText |
A compound that inhibits the formation of a complex composed of the ubiquitin E2 enzyme Ubc13 and Uev1A was isolated from the marine sponge Leucetta aff. microrhaphis. The compound was identified as leucettamol A (1) by spectroscopic analysis. Its inhibition of Ubc13-Uev1A interaction was tested by the ELISA method, revealing an IC(50) value of 50 microg/mL. The compound is the first inhibitor of Ubc13-Uev1A interaction, that is, that of the E2 activity of Ubc13. Such inhibitors are presumed to be leads for anti-cancer agents that upregulate activity of the tumor suppressor p53 protein. Interestingly, hydrogenation of 1 increased its inhibitory activity with an IC(50) value of 4 microg/mL, while its tetraacetate derivative was inactive, indicating that the hydroxy and/or amino groups of 1 are required for the inhibition.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antineoplastic Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Sphingolipids,
http://linkedlifedata.com/resource/pubmed/chemical/TP53 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Transcription Factors,
http://linkedlifedata.com/resource/pubmed/chemical/Tumor Suppressor Protein p53,
http://linkedlifedata.com/resource/pubmed/chemical/UBE2N protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/UBE2V1 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Ubiquitin-Conjugating Enzymes
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
1464-3405
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:day |
15
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pubmed:volume |
18
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
6319-20
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pubmed:dateRevised |
2010-4-13
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pubmed:meshHeading |
pubmed-meshheading:19006668-Animals,
pubmed-meshheading:19006668-Antineoplastic Agents,
pubmed-meshheading:19006668-Crystallography, X-Ray,
pubmed-meshheading:19006668-Dimerization,
pubmed-meshheading:19006668-Drug Screening Assays, Antitumor,
pubmed-meshheading:19006668-Gene Expression Regulation, Neoplastic,
pubmed-meshheading:19006668-Genes, p53,
pubmed-meshheading:19006668-Humans,
pubmed-meshheading:19006668-Inhibitory Concentration 50,
pubmed-meshheading:19006668-Models, Chemical,
pubmed-meshheading:19006668-Porifera,
pubmed-meshheading:19006668-Recombinant Proteins,
pubmed-meshheading:19006668-Sphingolipids,
pubmed-meshheading:19006668-Transcription Factors,
pubmed-meshheading:19006668-Tumor Suppressor Protein p53,
pubmed-meshheading:19006668-Ubiquitin-Conjugating Enzymes
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pubmed:year |
2008
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pubmed:articleTitle |
Leucettamol A: a new inhibitor of Ubc13-Uev1A interaction isolated from a marine sponge, Leucetta aff. microrhaphis.
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pubmed:affiliation |
Graduate School of Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan. sachiko@faculty.chiba-u.jp
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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