inria-00637848, version 1
Community-Wide Assessment of Protein-Interface Modeling Suggests Improvements to Design Methodology.
Journal of Molecular Biology (2011) in press
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INRIA – CNRS : UMR7503 – Université Henri Poincaré - Nancy I – Université Nancy II – Institut National Polytechnique de Lorraine (INPL) France - 2 :
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http://www.inria.fr/recherche/equipes/amib.fr.html
INRIA – Polytechnique - X – CNRS : UMR8623 – Université Paris XI - Paris Sud LIX Route de Saclay 91128 PALAISEAU CEDEX France - 3 :
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CNRS : UMR6175 – Institut national de la recherche agronomique (INRA) : UR0085 – Université François Rabelais - Tours Centre de Recherches de Tours 37380 NOUZILLY France - 4 :
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CNRS : UMR8619 – Université Paris XI - Paris Sud IBBMC UMR 8619, bâtiment 430, Université Paris-Sud, 91405 Orsay France
Références bibliographiques
- Type de publication : Articles dans des revues avec comité de lecture
- Domaine : Sciences du Vivant/Biochimie, Biologie Moléculaire/Biologie structurale
- PMID (identifiant Pubmed) :
(22001016) - Titre : Community-Wide Assessment of Protein-Interface Modeling Suggests Improvements to Design Methodology.
- Résumé : The CAPRI (Critical Assessment of Predicted Interactions) and CASP (Critical Assessment of protein Structure Prediction) experiments have demonstrated the power of community-wide tests of methodology in assessing the current state of the art and spurring progress in the very challenging areas of protein docking and structure prediction. We sought to bring the power of community-wide experiments to bear on a very challenging protein design problem that provides a complementary but equally fundamental test of current understanding of protein-binding thermodynamics. We have generated a number of designed protein-protein interfaces with very favorable computed binding energies but which do not appear to be formed in experiments, suggesting that there may be important physical chemistry missing in the energy calculations. A total of 28 research groups took up the challenge of determining what is missing: we provided structures of 87 designed complexes and 120 naturally occurring complexes and asked participants to identify energetic contributions and/or structural features that distinguish between the two sets. The community found that electrostatics and solvation terms partially distinguish the designs from the natural complexes, largely due to the nonpolar character of the designed interactions. Beyond this polarity difference, the community found that the designed binding surfaces were, on average, structurally less embedded in the designed monomers, suggesting that backbone conformational rigidity at the designed surface is important for realization of the designed function. These results can be used to improve computational design strategies, but there is still much to be learned; for example, one designed complex, which does form in experiments, was classified by all metrics as a nonbinder.
- Langue du document : Anglais
- Titre de la revue :
Journal of Molecular Biology (J Mol Biol) Publisher Elsevier ISSN 0022-2836 (eISSN : 1089-8638) - Date de publication : 29/09/2011
- Audience : internationale
- Editeur commercial : Elsevier
- Pagination : in press
- DOI : 10.1016/j.jmb.2011.09.031
- inria-00637848, version 1
- http://hal.inria.fr/inria-00637848
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- Soumis le : Jeudi 3 Novembre 2011, 10:20:27
- Dernière modification le : Samedi 12 Mai 2012, 10:12:27

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