Source:http://linkedlifedata.com/resource/pubmed/id/15481986
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
22
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pubmed:dateCreated |
2004-10-14
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pubmed:abstractText |
Acetylcholinesterase (AChE) inhibition is an important research topic because of its wide range of associated health implications. A receptor-specific scoring function was developed herein for predicting binding affinities for human AChE (huAChE) inhibitors. This method entails a statistically trained weighted sum of electrostatic and van der Waals (VDW) interactions between ligands and the receptor residues. Within the 53 ligand training set, a strong correlation was found (R2 = 0.89) between computed and experimental inhibition constants. Leave-one-out cross-validation indicated high predictive power (Q2 = 0.72), and analysis of a separate 16-compound test set also produced very good correlation with experiment (R2 = 0.69). Scoring function analysis has permitted identification and characterization of important ligand-receptor interactions, producing a list of those residues making the most important electrostatic and VDW contributions within the main active site, gorge area, acyl binding pocket, and periferal site. These analyses are consistent with X-ray crystallographic and site-directed mutagenesis studies.
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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/Acetylcholinesterase,
http://linkedlifedata.com/resource/pubmed/chemical/Cholinesterase Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Indans,
http://linkedlifedata.com/resource/pubmed/chemical/Ligands,
http://linkedlifedata.com/resource/pubmed/chemical/Piperidines,
http://linkedlifedata.com/resource/pubmed/chemical/donepezil
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0022-2623
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
21
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pubmed:volume |
47
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
5492-500
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:15481986-Acetylcholinesterase,
pubmed-meshheading:15481986-Binding Sites,
pubmed-meshheading:15481986-Cholinesterase Inhibitors,
pubmed-meshheading:15481986-Crystallography, X-Ray,
pubmed-meshheading:15481986-Humans,
pubmed-meshheading:15481986-Indans,
pubmed-meshheading:15481986-Ligands,
pubmed-meshheading:15481986-Models, Molecular,
pubmed-meshheading:15481986-Molecular Structure,
pubmed-meshheading:15481986-Mutagenesis, Site-Directed,
pubmed-meshheading:15481986-Piperidines,
pubmed-meshheading:15481986-Protein Binding,
pubmed-meshheading:15481986-Quantitative Structure-Activity Relationship
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pubmed:year |
2004
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pubmed:articleTitle |
A docking score function for estimating ligand-protein interactions: application to acetylcholinesterase inhibition.
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pubmed:affiliation |
Molecular Graphics and Modeling Lab, University of Kansas, Lawrence, Kansas 66045, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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