917 resultados para Class II division 1


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National Highway Traffic Safety Administration, Washington, D.C.

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Mode of access: Internet.

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National Highway Safety Bureau, Washington, D.C.

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Thesis (doctoral)--Kgl. Ludwig-Maximilians-Universitat Munchen.

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Trägerband: Ms. Barth. 54; Vorbesitzer: Johannes Mushunt de Fulda; Bartholomaeusstift Frankfurt am Main

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Trägerband: 15/474; Vorbesitzer: Dominikanerkloster Frankfurt am Main

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Motivation: While processing of MHC class II antigens for presentation to helper T-cells is essential for normal immune response, it is also implicated in the pathogenesis of autoimmune disorders and hypersensitivity reactions. Sequence-based computational techniques for predicting HLA-DQ binding peptides have encountered limited success, with few prediction techniques developed using three-dimensional models. Methods: We describe a structure-based prediction model for modeling peptide-DQ3.2 beta complexes. We have developed a rapid and accurate protocol for docking candidate peptides into the DQ3.2 beta receptor and a scoring function to discriminate binders from the background. The scoring function was rigorously trained, tested and validated using experimentally verified DQ3.2 beta binding and non-binding peptides obtained from biochemical and functional studies. Results: Our model predicts DQ3.2 beta binding peptides with high accuracy [area under the receiver operating characteristic (ROC) curve A(ROC) > 0.90], compared with experimental data. We investigated the binding patterns of DQ3.2 beta peptides and illustrate that several registers exist within a candidate binding peptide. Further analysis reveals that peptides with multiple registers occur predominantly for high-affinity binders.