Serveur d'exploration MERS

Attention, ce site est en cours de développement !
Attention, site généré par des moyens informatiques à partir de corpus bruts.
Les informations ne sont donc pas validées.

Anchor profiles of HLA‐specific peptides: Analysis by a novel affinity scoring method and experimental validation

Identifieur interne : 003019 ( Main/Exploration ); précédent : 003018; suivant : 003020

Anchor profiles of HLA‐specific peptides: Analysis by a novel affinity scoring method and experimental validation

Auteurs : Johan Desmet [Belgique] ; Geert Meersseman [Belgique] ; Nathalie Boutonnet [Belgique] ; Jurgen Pletinckx [Belgique] ; Krista De Clercq [Belgique] ; Maja Debulpaep [Belgique] ; Tessa Braeckman [Belgique] ; Ignace Lasters [Belgique]

Source :

RBID : ISTEX:A1E85E94CF6C860054D73C0ED486895807B7FE01

English descriptors

Abstract

The study of intermolecular interactions is a fundamental research subject in biology. Here we report on the development of a quantitative structure‐based affinity scoring method for peptide–protein complexes, named PepScope. The method operates on the basis of a highly specific force field function (CHARMM) that is applied to all‐atom structural representations of peptide–receptor complexes. Peptide side‐chain contributions to total affinity are scored after detailed rotameric sampling followed by controlled energy refinement. A de novo approach to estimate dehydration energies was developed, based on the simulation of individual amino acids in a solvent box filled with explicit water molecules. Transferability of the method was demonstrated by its application to the hydrophobic HLA‐A2 and ‐A24 receptors, the polar HLA‐A1, and the sterically ruled HLA‐B7 receptor. A combined theoretical and experimental study on 39 anchor substitutions in FxSKQYMTx/HLA‐A2 and ‐A24 complexes indicated a prediction accuracy of about two thirds of a log‐unit in Kd. Analysis of free energy contributions identified a great role of desolvation and conformational strain effects in establishing a given specificity profile. Interestingly, the method rightly predicted that most anchor profiles are less specific than so far assumed. This suggests that many potential T‐cell epitopes could be missed with current prediction methods. The results presented in this work may therefore significantly affect T‐cell epitope discovery programs applied in the field of peptide vaccine development. Proteins 2005. © 2004 Wiley‐Liss, Inc.

Url:
DOI: 10.1002/prot.20302


Affiliations:


Links toward previous steps (curation, corpus...)


Le document en format XML

<record>
<TEI wicri:istexFullTextTei="biblStruct">
<teiHeader>
<fileDesc>
<titleStmt>
<title xml:lang="en">Anchor profiles of HLA‐specific peptides: Analysis by a novel affinity scoring method and experimental validation</title>
<author>
<name sortKey="Desmet, Johan" sort="Desmet, Johan" uniqKey="Desmet J" first="Johan" last="Desmet">Johan Desmet</name>
</author>
<author>
<name sortKey="Meersseman, Geert" sort="Meersseman, Geert" uniqKey="Meersseman G" first="Geert" last="Meersseman">Geert Meersseman</name>
</author>
<author>
<name sortKey="Boutonnet, Nathalie" sort="Boutonnet, Nathalie" uniqKey="Boutonnet N" first="Nathalie" last="Boutonnet">Nathalie Boutonnet</name>
</author>
<author>
<name sortKey="Pletinckx, Jurgen" sort="Pletinckx, Jurgen" uniqKey="Pletinckx J" first="Jurgen" last="Pletinckx">Jurgen Pletinckx</name>
</author>
<author>
<name sortKey="De Clercq, Krista" sort="De Clercq, Krista" uniqKey="De Clercq K" first="Krista" last="De Clercq">Krista De Clercq</name>
</author>
<author>
<name sortKey="Debulpaep, Maja" sort="Debulpaep, Maja" uniqKey="Debulpaep M" first="Maja" last="Debulpaep">Maja Debulpaep</name>
</author>
<author>
<name sortKey="Braeckman, Tessa" sort="Braeckman, Tessa" uniqKey="Braeckman T" first="Tessa" last="Braeckman">Tessa Braeckman</name>
</author>
<author>
<name sortKey="Lasters, Ignace" sort="Lasters, Ignace" uniqKey="Lasters I" first="Ignace" last="Lasters">Ignace Lasters</name>
</author>
</titleStmt>
<publicationStmt>
<idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:A1E85E94CF6C860054D73C0ED486895807B7FE01</idno>
<date when="2005" year="2005">2005</date>
<idno type="doi">10.1002/prot.20302</idno>
<idno type="url">https://api.istex.fr/ark:/67375/WNG-ZP921NZL-6/fulltext.pdf</idno>
<idno type="wicri:Area/Istex/Corpus">002790</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">002790</idno>
<idno type="wicri:Area/Istex/Curation">002790</idno>
<idno type="wicri:Area/Istex/Checkpoint">000B32</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000B32</idno>
<idno type="wicri:doubleKey">0887-3585:2005:Desmet J:anchor:profiles:of</idno>
<idno type="wicri:Area/Main/Merge">003050</idno>
<idno type="wicri:Area/Main/Curation">003019</idno>
<idno type="wicri:Area/Main/Exploration">003019</idno>
</publicationStmt>
<sourceDesc>
<biblStruct>
<analytic>
<title level="a" type="main">Anchor profiles of HLA‐specific peptides: Analysis by a novel affinity scoring method and experimental validation</title>
<author>
<name sortKey="Desmet, Johan" sort="Desmet, Johan" uniqKey="Desmet J" first="Johan" last="Desmet">Johan Desmet</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Belgique</country>
<wicri:regionArea>AlgoNomics NV, Gent‐Zwijnaarde</wicri:regionArea>
<wicri:noRegion>Gent‐Zwijnaarde</wicri:noRegion>
</affiliation>
<affiliation></affiliation>
<affiliation wicri:level="1">
<country xml:lang="fr" wicri:curation="lc">Belgique</country>
<wicri:regionArea>Correspondence address: AlgoNomics NV, Technologiepark 4, B‐9052 Gent</wicri:regionArea>
<wicri:noRegion>B‐9052 Gent</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Meersseman, Geert" sort="Meersseman, Geert" uniqKey="Meersseman G" first="Geert" last="Meersseman">Geert Meersseman</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Belgique</country>
<wicri:regionArea>AlgoNomics NV, Gent‐Zwijnaarde</wicri:regionArea>
<wicri:noRegion>Gent‐Zwijnaarde</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Boutonnet, Nathalie" sort="Boutonnet, Nathalie" uniqKey="Boutonnet N" first="Nathalie" last="Boutonnet">Nathalie Boutonnet</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Belgique</country>
<wicri:regionArea>AlgoNomics NV, Gent‐Zwijnaarde</wicri:regionArea>
<wicri:noRegion>Gent‐Zwijnaarde</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Pletinckx, Jurgen" sort="Pletinckx, Jurgen" uniqKey="Pletinckx J" first="Jurgen" last="Pletinckx">Jurgen Pletinckx</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Belgique</country>
<wicri:regionArea>AlgoNomics NV, Gent‐Zwijnaarde</wicri:regionArea>
<wicri:noRegion>Gent‐Zwijnaarde</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="De Clercq, Krista" sort="De Clercq, Krista" uniqKey="De Clercq K" first="Krista" last="De Clercq">Krista De Clercq</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Belgique</country>
<wicri:regionArea>AlgoNomics NV, Gent‐Zwijnaarde</wicri:regionArea>
<wicri:noRegion>Gent‐Zwijnaarde</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Debulpaep, Maja" sort="Debulpaep, Maja" uniqKey="Debulpaep M" first="Maja" last="Debulpaep">Maja Debulpaep</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Belgique</country>
<wicri:regionArea>Vrije Universiteit Brussel, Labo Fysiologie‐Immunologie, Brussel</wicri:regionArea>
<wicri:noRegion>Brussel</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Braeckman, Tessa" sort="Braeckman, Tessa" uniqKey="Braeckman T" first="Tessa" last="Braeckman">Tessa Braeckman</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Belgique</country>
<wicri:regionArea>Vrije Universiteit Brussel, Labo Fysiologie‐Immunologie, Brussel</wicri:regionArea>
<wicri:noRegion>Brussel</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Lasters, Ignace" sort="Lasters, Ignace" uniqKey="Lasters I" first="Ignace" last="Lasters">Ignace Lasters</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Belgique</country>
<wicri:regionArea>AlgoNomics NV, Gent‐Zwijnaarde</wicri:regionArea>
<wicri:noRegion>Gent‐Zwijnaarde</wicri:noRegion>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series>
<title level="j" type="main">Proteins: Structure, Function, and Bioinformatics</title>
<title level="j" type="alt">PROTEINS: STRUCTURE, FUNCTION, AND BIOINFORMATICS</title>
<idno type="ISSN">0887-3585</idno>
<idno type="eISSN">1097-0134</idno>
<imprint>
<biblScope unit="vol">58</biblScope>
<biblScope unit="issue">1</biblScope>
<biblScope unit="page" from="53">53</biblScope>
<biblScope unit="page" to="69">69</biblScope>
<biblScope unit="page-count">17</biblScope>
<publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher>
<pubPlace>Hoboken</pubPlace>
<date type="published" when="2005-01-01">2005-01-01</date>
</imprint>
<idno type="ISSN">0887-3585</idno>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt>
<idno type="ISSN">0887-3585</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="Teeft" xml:lang="en">
<term>Absolute value</term>
<term>Acid residues</term>
<term>Acid substitutions</term>
<term>Algorithm</term>
<term>Aliphatic</term>
<term>Aliphatic moiety</term>
<term>Aliphatic residues</term>
<term>Amide</term>
<term>Amide group</term>
<term>Amino</term>
<term>Amino acid</term>
<term>Amino acid model compounds</term>
<term>Amino acid side chains</term>
<term>Amino acids</term>
<term>Anchor</term>
<term>Anchor position</term>
<term>Anchor positions</term>
<term>Anchor preferences</term>
<term>Anchor profiles</term>
<term>Anchor residues</term>
<term>Anchor substitutions</term>
<term>Anking peptide groups</term>
<term>Aromatic</term>
<term>Aromatic groups</term>
<term>Assay</term>
<term>Bimas</term>
<term>Bimas matrix</term>
<term>Bimas score syfpeithi score</term>
<term>Binding</term>
<term>Binding capacities</term>
<term>Binding capacity</term>
<term>Binding energy</term>
<term>Binding groove</term>
<term>Binding peptides</term>
<term>Biol</term>
<term>Carboxylate groups</term>
<term>Charmm</term>
<term>Chemical group</term>
<term>Complex formation</term>
<term>Complex models</term>
<term>Conformation</term>
<term>Conformational</term>
<term>Conformational space</term>
<term>Conformational strain</term>
<term>Conjugate gradient minimization</term>
<term>Correlation plot</term>
<term>Curr opin struct biol</term>
<term>Cutoff</term>
<term>Data sets</term>
<term>Delicate balance</term>
<term>Descent energy minimization</term>
<term>Desmet</term>
<term>Desolvation</term>
<term>Desolvation effects</term>
<term>Desolvation energies</term>
<term>Desolvation energy</term>
<term>Desolvation term</term>
<term>Desolvation terms</term>
<term>Direct comparison</term>
<term>Direct interactions</term>
<term>Docking</term>
<term>Docking algorithm</term>
<term>Electrostatic energy</term>
<term>Electrostatic interactions</term>
<term>Energetic analysis</term>
<term>Energetic cost</term>
<term>Energy functions</term>
<term>Energy score</term>
<term>Entropic effects</term>
<term>Exible</term>
<term>Exible peptides</term>
<term>Experimental data</term>
<term>Experimental information</term>
<term>Experimental validation</term>
<term>Experimental values</term>
<term>Explicit water molecules</term>
<term>Flexible docking</term>
<term>Flskqymtl</term>
<term>Free energies</term>
<term>Free energy</term>
<term>Free energy calculations</term>
<term>Free energy perturbation</term>
<term>Gexp score</term>
<term>Guanidinium</term>
<term>Guanidinium group</term>
<term>Guanidinium groups</term>
<term>Histocompatibility</term>
<term>Hydration</term>
<term>Hydration energies</term>
<term>Hydration energy</term>
<term>Hydrophobic</term>
<term>Immunol</term>
<term>Interaction</term>
<term>Interaction energy</term>
<term>Intermolecular interactions</term>
<term>Intracomplex</term>
<term>Intracomplex energies</term>
<term>Intracomplex interactions</term>
<term>Intracomplex terms</term>
<term>Kluwer press</term>
<term>Ligand</term>
<term>Ligand binding</term>
<term>Local interactions</term>
<term>Logkd</term>
<term>Main purpose</term>
<term>Major histocompatibility</term>
<term>Matrix</term>
<term>Minimization</term>
<term>Model preparation step</term>
<term>Modeling</term>
<term>Moiety</term>
<term>Molecule</term>
<term>Multiple representations</term>
<term>Mutant</term>
<term>Mutation</term>
<term>Nonanchor residues</term>
<term>Nonbonded interactions</term>
<term>Other residue types</term>
<term>Pepscope</term>
<term>Pepscope method</term>
<term>Pepscope score sidney</term>
<term>Peptide</term>
<term>Peptide backbone</term>
<term>Peptide binding</term>
<term>Peptide flskqymtl</term>
<term>Peptide ligands</term>
<term>Peptide motifs</term>
<term>Peptide sequence</term>
<term>Peptide sequences</term>
<term>Peptides table</term>
<term>Possible explanation</term>
<term>Prediction</term>
<term>Prediction accuracy</term>
<term>Prediction methods</term>
<term>Prediction scores</term>
<term>Preferred residues</term>
<term>Primary reason</term>
<term>Proc natl acad</term>
<term>Prohibitive nature</term>
<term>Protein data bank</term>
<term>Rational drug design</term>
<term>Receptor</term>
<term>Receptor complexes</term>
<term>Receptor type</term>
<term>Reference peptide</term>
<term>Regression line</term>
<term>Residue</term>
<term>Residue types</term>
<term>Rotamer</term>
<term>Rotamer library</term>
<term>Rotameric</term>
<term>Rotameric sampling</term>
<term>Same approach</term>
<term>Same charmm force</term>
<term>Second group</term>
<term>Secondary anchor residues</term>
<term>Self energy</term>
<term>Sette</term>
<term>Simulation</term>
<term>Smaller ones</term>
<term>Solvation</term>
<term>Solvent model</term>
<term>Solvent terms</term>
<term>Solvent water</term>
<term>Standard geometry</term>
<term>Strain contributions</term>
<term>Strain terms</term>
<term>Striking observation</term>
<term>Strong binding</term>
<term>Strong interactions</term>
<term>Strong preference</term>
<term>Structural data</term>
<term>Substitution</term>
<term>Syfpeithi</term>
<term>Systematic errors</term>
<term>Test peptide</term>
<term>Total energy</term>
<term>Total scores</term>
<term>Transferability</term>
<term>Uncalibrated score</term>
<term>Validation</term>
<term>Validation experiments</term>
<term>Waals</term>
<term>Waals interactions</term>
<term>Waals parameters</term>
<term>Water molecules</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">The study of intermolecular interactions is a fundamental research subject in biology. Here we report on the development of a quantitative structure‐based affinity scoring method for peptide–protein complexes, named PepScope. The method operates on the basis of a highly specific force field function (CHARMM) that is applied to all‐atom structural representations of peptide–receptor complexes. Peptide side‐chain contributions to total affinity are scored after detailed rotameric sampling followed by controlled energy refinement. A de novo approach to estimate dehydration energies was developed, based on the simulation of individual amino acids in a solvent box filled with explicit water molecules. Transferability of the method was demonstrated by its application to the hydrophobic HLA‐A2 and ‐A24 receptors, the polar HLA‐A1, and the sterically ruled HLA‐B7 receptor. A combined theoretical and experimental study on 39 anchor substitutions in FxSKQYMTx/HLA‐A2 and ‐A24 complexes indicated a prediction accuracy of about two thirds of a log‐unit in Kd. Analysis of free energy contributions identified a great role of desolvation and conformational strain effects in establishing a given specificity profile. Interestingly, the method rightly predicted that most anchor profiles are less specific than so far assumed. This suggests that many potential T‐cell epitopes could be missed with current prediction methods. The results presented in this work may therefore significantly affect T‐cell epitope discovery programs applied in the field of peptide vaccine development. Proteins 2005. © 2004 Wiley‐Liss, Inc.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Belgique</li>
</country>
</list>
<tree>
<country name="Belgique">
<noRegion>
<name sortKey="Desmet, Johan" sort="Desmet, Johan" uniqKey="Desmet J" first="Johan" last="Desmet">Johan Desmet</name>
</noRegion>
<name sortKey="Boutonnet, Nathalie" sort="Boutonnet, Nathalie" uniqKey="Boutonnet N" first="Nathalie" last="Boutonnet">Nathalie Boutonnet</name>
<name sortKey="Braeckman, Tessa" sort="Braeckman, Tessa" uniqKey="Braeckman T" first="Tessa" last="Braeckman">Tessa Braeckman</name>
<name sortKey="De Clercq, Krista" sort="De Clercq, Krista" uniqKey="De Clercq K" first="Krista" last="De Clercq">Krista De Clercq</name>
<name sortKey="Debulpaep, Maja" sort="Debulpaep, Maja" uniqKey="Debulpaep M" first="Maja" last="Debulpaep">Maja Debulpaep</name>
<name sortKey="Desmet, Johan" sort="Desmet, Johan" uniqKey="Desmet J" first="Johan" last="Desmet">Johan Desmet</name>
<name sortKey="Lasters, Ignace" sort="Lasters, Ignace" uniqKey="Lasters I" first="Ignace" last="Lasters">Ignace Lasters</name>
<name sortKey="Meersseman, Geert" sort="Meersseman, Geert" uniqKey="Meersseman G" first="Geert" last="Meersseman">Geert Meersseman</name>
<name sortKey="Pletinckx, Jurgen" sort="Pletinckx, Jurgen" uniqKey="Pletinckx J" first="Jurgen" last="Pletinckx">Jurgen Pletinckx</name>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Sante/explor/MersV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 003019 | SxmlIndent | more

Ou

HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 003019 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Sante
   |area=    MersV1
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     ISTEX:A1E85E94CF6C860054D73C0ED486895807B7FE01
   |texte=   Anchor profiles of HLA‐specific peptides: Analysis by a novel affinity scoring method and experimental validation
}}

Wicri

This area was generated with Dilib version V0.6.33.
Data generation: Mon Apr 20 23:26:43 2020. Site generation: Sat Mar 27 09:06:09 2021