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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1002/jcc.23250
|2 doi
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|a pubmed24n0750.xml
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|a (DE-627)NLM225133466
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|a (NLM)23420697
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Chang, Le
|e verfasserin
|4 aut
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|a Protein-specific force field derived from the fragment molecular orbital method can improve protein-ligand binding interactions
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 30.09.2013
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|a Date Revised 22.04.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2013 Wiley Periodicals, Inc.
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|a Accurate computational estimate of the protein-ligand binding affinity is of central importance in rational drug design. To improve accuracy of the molecular mechanics (MM) force field (FF) for protein-ligand simulations, we use a protein-specific FF derived by the fragment molecular orbital (FMO) method and by the restrained electrostatic potential (RESP) method. Applying this FMO-RESP method to two proteins, dodecin, and lysozyme, we found that protein-specific partial charges tend to differ more significantly from the standard AMBER charges for isolated charged atoms. We did not see the dependence of partial charges on the secondary structure. Computing the binding affinities of dodecin with five ligands by MM PBSA protocol with the FMO-RESP charge set as well as with the standard AMBER charges, we found that the former gives better correlation with experimental affinities than the latter. While, for lysozyme with five ligands, both charge sets gave similar and relatively accurate estimates of binding affinities
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Archaeal Proteins
|2 NLM
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|a Ligands
|2 NLM
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|a Muramidase
|2 NLM
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|a EC 3.2.1.17
|2 NLM
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|a Ishikawa, Takeshi
|e verfasserin
|4 aut
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|a Kuwata, Kazuo
|e verfasserin
|4 aut
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| 700 |
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|a Takada, Shoji
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of computational chemistry
|d 1984
|g 34(2013), 14 vom: 30. Mai, Seite 1251-7
|w (DE-627)NLM098138448
|x 1096-987X
|7 nnns
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| 773 |
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|g volume:34
|g year:2013
|g number:14
|g day:30
|g month:05
|g pages:1251-7
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|u http://dx.doi.org/10.1002/jcc.23250
|3 Volltext
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|d 34
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