Source:http://linkedlifedata.com/resource/pubmed/id/20630764
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
15
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pubmed:dateCreated |
2010-7-23
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pubmed:abstractText |
Sirtuins catalyze the NAD(+) dependent deacetylation of N(epsilon)-acetyl lysine residues to nicotinamide, O'-acetyl-ADP-ribose (OAADPR) and N(epsilon)-deacetylated lysine. Here, an easy-to-synthesize Ac-Ala-Lys-Ala sequence has been used as a probe for the screening of novel N(epsilon)-modified lysine containing inhibitors against SIRT1 and SIRT2. N(epsilon)-Selenoacetyl and N(epsilon)-isothiovaleryl were the most potent moieties found in this study, comparable to the widely studied N(epsilon)-thioacetyl group. The N(epsilon)-3,3-dimethylacryl and N(epsilon)-isovaleryl moieties gave significant inhibition in comparison to the N(epsilon)-acetyl group present in the substrates. In addition, the studied N(epsilon)-alkanoyl, N(epsilon)-alpha,beta-unsaturated carbonyl and N(epsilon)-aroyl moieties showed that the acetyl binding pocket can accept rather large groups, but is sensitive to even small changes in electronic and steric properties of the N(epsilon)-modification. These results are applicable for further screening of N(epsilon)-acetyl analogues.
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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/Histone Deacetylase Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Lysine,
http://linkedlifedata.com/resource/pubmed/chemical/Peptides,
http://linkedlifedata.com/resource/pubmed/chemical/Sirtuin 1,
http://linkedlifedata.com/resource/pubmed/chemical/Sirtuin 2
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
1464-3391
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pubmed:author | |
pubmed:copyrightInfo |
Copyright (c) 2010. Published by Elsevier Ltd.
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pubmed:issnType |
Electronic
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pubmed:day |
1
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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 |
5616-25
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pubmed:meshHeading |
pubmed-meshheading:20630764-Amino Acid Sequence,
pubmed-meshheading:20630764-Histone Deacetylase Inhibitors,
pubmed-meshheading:20630764-Humans,
pubmed-meshheading:20630764-Lysine,
pubmed-meshheading:20630764-Peptides,
pubmed-meshheading:20630764-Sirtuin 1,
pubmed-meshheading:20630764-Sirtuin 2,
pubmed-meshheading:20630764-Structure-Activity Relationship
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pubmed:year |
2010
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pubmed:articleTitle |
N(epsilon)-Modified lysine containing inhibitors for SIRT1 and SIRT2.
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pubmed:affiliation |
School of Pharmacy, University of Eastern Finland, Kuopio Campus, PO Box 1627, 70211 Kuopio, Finland. Tero.Huhtiniemi@uef.fi
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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