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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1996-3-14
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pubmed:abstractText |
Free energy simulations are reported for the N31LD mutation, both in the HyHEL-10-HEL antibody-lysozyme complex and in the unliganded antibody, using the thermodynamic-cycle perturbation method. The present study suggests that the mutation would change the free energy of binding of the complex by -5.6 kcal/mol (unrestrained free energy simulations), by -0.5 kcal/mol (free energy simulations with a restrained backbone) and by 1.8 kcal/mol (Poisson-Boltzmann calculations, which also use a restrained geometry model). A detailed structural analysis helps in estimating the contributions from various residues and regions of the system. Enhanced recognition of HEL by the mutant HyHEL-10 would arise from the combination of thermodynamically more favorable conformational changes of the CDR loops upon association and subsequent charge pairing with Lys96 in the antigen.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
|
pubmed:issn |
0269-2139
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
8
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
663-75
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8577695-Antigen-Antibody Complex,
pubmed-meshheading:8577695-Immunoglobulin Variable Region,
pubmed-meshheading:8577695-Models, Chemical,
pubmed-meshheading:8577695-Muramidase,
pubmed-meshheading:8577695-Mutation,
pubmed-meshheading:8577695-Poisson Distribution,
pubmed-meshheading:8577695-Protein Conformation,
pubmed-meshheading:8577695-Thermodynamics,
pubmed-meshheading:8577695-Water
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pubmed:year |
1995
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pubmed:articleTitle |
Free energy simulations of the HyHEL-10/HEL antibody-antigen complex.
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pubmed:affiliation |
Department of Chemistry, University of Houston, TX 77204, 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
|