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|a DE-627
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|e rakwb
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|a eng
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|a Fedorov, Dmitri G
|e verfasserin
|4 aut
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|a Pair interaction energy decomposition analysis
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 25.01.2007
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|a Date Revised 12.12.2006
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Copyright (c) 2006 Wiley Periodicals, Inc.
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|a The energy decomposition analysis (EDA) by Kitaura and Morokuma was redeveloped in the framework of the fragment molecular orbital method (FMO). The proposed pair interaction energy decomposition analysis (PIEDA) can treat large molecular clusters and the systems in which fragments are connected by covalent bonds, such as proteins. The interaction energy in PIEDA is divided into the same contributions as in EDA: the electrostatic, exchange-repulsion, and charge transfer energies, to which the correlation (dispersion) term was added. The careful comparison to the ab initio EDA interaction energies for water clusters with 2-16 molecules revealed that PIEDA has the error of at most 1.2 kcal/mol (or about 1%). The analysis was applied to (H2O)1024, the alpha helix, beta turn, and beta strand of polyalanine (ALA)10, as well as to the synthetic protein (PDB code 1L2Y) with 20 residues. The comparative aspects of the polypeptide isomer stability are discussed in detail
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|a Journal Article
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|a Kitaura, Kazuo
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of computational chemistry
|d 1984
|g 28(2007), 1 vom: 15. Jan., Seite 222-37
|w (DE-627)NLM098138448
|x 1096-987X
|7 nnns
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|g volume:28
|g year:2007
|g number:1
|g day:15
|g month:01
|g pages:222-37
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|d 28
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