Source:http://linkedlifedata.com/resource/pubmed/id/17449248
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
13
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pubmed:dateCreated |
2007-6-18
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pubmed:abstractText |
3-Amino-2-keto-7H-thieno[2,3-b]pyridin-6-one derivatives were discovered as moderately potent inhibitors of ubiquitin C-terminal hydrolase-L1 (UCH-L1) utilizing an assay that measures hydrolysis of the fluorogenic substrate Ub-AMC. SAR studies revealed that both the carboxylate at the 5-position and the 6-pyridone ring were critical for inhibitory activity. Furthermore, activity was dependent on the nature of the ketone substituent at the 2-position, with 4-Me-Ph and 2-naphthyl being best. Kinetic mechanism studies revealed that these compounds were uncompetitive inhibitors of UCH-L1, binding only to the Michaelis-complex and not to free enzyme. The active compounds were selective for UCH-L1, exhibiting neither inhibition of other cysteine hydrolases (e.g., UCH-L3, papain, isopeptidase T, caspase-3, and tissue transglutaminase) nor cytotoxicity in N2A cells.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cysteine,
http://linkedlifedata.com/resource/pubmed/chemical/Enzyme Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Ketones,
http://linkedlifedata.com/resource/pubmed/chemical/UCHL1 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Ubiquitin Thiolesterase
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0960-894X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
17
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3729-32
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pubmed:meshHeading |
pubmed-meshheading:17449248-Cell Line, Tumor,
pubmed-meshheading:17449248-Chemistry, Pharmaceutical,
pubmed-meshheading:17449248-Cysteine,
pubmed-meshheading:17449248-Drug Design,
pubmed-meshheading:17449248-Enzyme Inhibitors,
pubmed-meshheading:17449248-Humans,
pubmed-meshheading:17449248-Ketones,
pubmed-meshheading:17449248-Kinetics,
pubmed-meshheading:17449248-Models, Chemical,
pubmed-meshheading:17449248-Protein Binding,
pubmed-meshheading:17449248-Structure-Activity Relationship,
pubmed-meshheading:17449248-Substrate Specificity,
pubmed-meshheading:17449248-Ubiquitin Thiolesterase
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pubmed:year |
2007
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pubmed:articleTitle |
Structure-activity relationship, kinetic mechanism, and selectivity for a new class of ubiquitin C-terminal hydrolase-L1 (UCH-L1) inhibitors.
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pubmed:affiliation |
Laboratory for Drug Discovery in Neurodegeneration, Harvard Center for Neurodegeneration and Repair, Brigham & Women's Hospital and Harvard Medical School, 65 Landsdowne Street, Cambridge, MA 02139, USA.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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