Evaluation of MHC class I peptide binding prediction servers: Applications for vaccine research

<p>Abstract</p> <p>Background</p> <p>Protein antigens and their specific epitopes are formulation targets for epitope-based vaccines. A number of prediction servers are available for identification of peptides that bind major histocompatibility complex class I (MHC-I) m...

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Main Authors: Reinherz Ellis L, Tongchusak Songsak, Ray Surajit, Lin Hong, Brusic Vladimir
Format: Article
Language:English
Published: BMC 2008-03-01
Series:BMC Immunology
Online Access:http://www.biomedcentral.com/1471-2172/9/8
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author Reinherz Ellis L
Tongchusak Songsak
Ray Surajit
Lin Hong
Brusic Vladimir
author_facet Reinherz Ellis L
Tongchusak Songsak
Ray Surajit
Lin Hong
Brusic Vladimir
author_sort Reinherz Ellis L
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Protein antigens and their specific epitopes are formulation targets for epitope-based vaccines. A number of prediction servers are available for identification of peptides that bind major histocompatibility complex class I (MHC-I) molecules. The lack of standardized methodology and large number of human MHC-I molecules make the selection of appropriate prediction servers difficult. This study reports a comparative evaluation of thirty prediction servers for seven human MHC-I molecules.</p> <p>Results</p> <p>Of 147 individual predictors 39 have shown excellent, 47 good, 33 marginal, and 28 poor ability to classify binders from non-binders. The classifiers for HLA-A*0201, A*0301, A*1101, B*0702, B*0801, and B*1501 have excellent, and for A*2402 moderate classification accuracy. Sixteen prediction servers predict peptide binding affinity to MHC-I molecules with high accuracy; correlation coefficients ranging from r = 0.55 (B*0801) to r = 0.87 (A*0201).</p> <p>Conclusion</p> <p>Non-linear predictors outperform matrix-based predictors. Most predictors can be improved by non-linear transformations of their raw prediction scores. The best predictors of peptide binding are also best in prediction of T-cell epitopes. We propose a new standard for MHC-I binding prediction – a common scale for normalization of prediction scores, applicable to both experimental and predicted data. The results of this study provide assistance to researchers in selection of most adequate prediction tools and selection criteria that suit the needs of their projects.</p>
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spelling doaj.art-dcf6d610091b4ecb9e0501ef4d3b177e2022-12-21T20:44:56ZengBMCBMC Immunology1471-21722008-03-0191810.1186/1471-2172-9-8Evaluation of MHC class I peptide binding prediction servers: Applications for vaccine researchReinherz Ellis LTongchusak SongsakRay SurajitLin HongBrusic Vladimir<p>Abstract</p> <p>Background</p> <p>Protein antigens and their specific epitopes are formulation targets for epitope-based vaccines. A number of prediction servers are available for identification of peptides that bind major histocompatibility complex class I (MHC-I) molecules. The lack of standardized methodology and large number of human MHC-I molecules make the selection of appropriate prediction servers difficult. This study reports a comparative evaluation of thirty prediction servers for seven human MHC-I molecules.</p> <p>Results</p> <p>Of 147 individual predictors 39 have shown excellent, 47 good, 33 marginal, and 28 poor ability to classify binders from non-binders. The classifiers for HLA-A*0201, A*0301, A*1101, B*0702, B*0801, and B*1501 have excellent, and for A*2402 moderate classification accuracy. Sixteen prediction servers predict peptide binding affinity to MHC-I molecules with high accuracy; correlation coefficients ranging from r = 0.55 (B*0801) to r = 0.87 (A*0201).</p> <p>Conclusion</p> <p>Non-linear predictors outperform matrix-based predictors. Most predictors can be improved by non-linear transformations of their raw prediction scores. The best predictors of peptide binding are also best in prediction of T-cell epitopes. We propose a new standard for MHC-I binding prediction – a common scale for normalization of prediction scores, applicable to both experimental and predicted data. The results of this study provide assistance to researchers in selection of most adequate prediction tools and selection criteria that suit the needs of their projects.</p>http://www.biomedcentral.com/1471-2172/9/8
spellingShingle Reinherz Ellis L
Tongchusak Songsak
Ray Surajit
Lin Hong
Brusic Vladimir
Evaluation of MHC class I peptide binding prediction servers: Applications for vaccine research
BMC Immunology
title Evaluation of MHC class I peptide binding prediction servers: Applications for vaccine research
title_full Evaluation of MHC class I peptide binding prediction servers: Applications for vaccine research
title_fullStr Evaluation of MHC class I peptide binding prediction servers: Applications for vaccine research
title_full_unstemmed Evaluation of MHC class I peptide binding prediction servers: Applications for vaccine research
title_short Evaluation of MHC class I peptide binding prediction servers: Applications for vaccine research
title_sort evaluation of mhc class i peptide binding prediction servers applications for vaccine research
url http://www.biomedcentral.com/1471-2172/9/8
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AT raysurajit evaluationofmhcclassipeptidebindingpredictionserversapplicationsforvaccineresearch
AT linhong evaluationofmhcclassipeptidebindingpredictionserversapplicationsforvaccineresearch
AT brusicvladimir evaluationofmhcclassipeptidebindingpredictionserversapplicationsforvaccineresearch