Epitope mapping of mono- and polyclonal antibodies by screening phage-displayed random peptide libraries

Detailed knowledge of antigenic determinants is crucial when characterizing therapeutic and diagnostic antibodies, assessing vaccine effectiveness and developing epitope-based vaccines. Most epitope mapping approaches are labor intensive and costly. In this study, we evaluated panning of phage-displ...

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Main Authors: Tomaž Bratkovič, Peter Molek
Format: Article
Language:English
Published: Slovenian Chemical Society 2016-10-01
Series:Acta Chimica Slovenica
Subjects:
Online Access:https://journals.matheo.si/index.php/ACSi/article/view/2458
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author Tomaž Bratkovič
Peter Molek
author_facet Tomaž Bratkovič
Peter Molek
author_sort Tomaž Bratkovič
collection DOAJ
description Detailed knowledge of antigenic determinants is crucial when characterizing therapeutic and diagnostic antibodies, assessing vaccine effectiveness and developing epitope-based vaccines. Most epitope mapping approaches are labor intensive and costly. In this study, we evaluated panning of phage-displayed random peptide libraries against antibodies as a tool for cognate epitope identification. We used six antibodies directed to three model protein antigens as targets to show that the approach is applicable to both mono- and polyclonal antibodies. The technique is well-suited especially for identification of linear epitopes. Mapping of conformational epitopes is more challenging, tends to be more subjective and requires use of computational tools. Nevertheless, when combined with functional data such as structure-activity relationship of antigen muteins, one can make reliable conformational epitope predictions based on phage display experiment data. As the described approach is fast and relatively inexpensive, we suggest it is employed early in antibody characterization and later validated by complementary methods.
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spelling doaj.art-0c1ed979827648b7a4560a5884e716152022-12-21T23:57:01ZengSlovenian Chemical SocietyActa Chimica Slovenica1318-02071580-31552016-10-0163491491910.17344/acsi.2016.2458395Epitope mapping of mono- and polyclonal antibodies by screening phage-displayed random peptide librariesTomaž Bratkovič0Peter MolekUniversity of Ljubljana, Faculty of PharmacyDetailed knowledge of antigenic determinants is crucial when characterizing therapeutic and diagnostic antibodies, assessing vaccine effectiveness and developing epitope-based vaccines. Most epitope mapping approaches are labor intensive and costly. In this study, we evaluated panning of phage-displayed random peptide libraries against antibodies as a tool for cognate epitope identification. We used six antibodies directed to three model protein antigens as targets to show that the approach is applicable to both mono- and polyclonal antibodies. The technique is well-suited especially for identification of linear epitopes. Mapping of conformational epitopes is more challenging, tends to be more subjective and requires use of computational tools. Nevertheless, when combined with functional data such as structure-activity relationship of antigen muteins, one can make reliable conformational epitope predictions based on phage display experiment data. As the described approach is fast and relatively inexpensive, we suggest it is employed early in antibody characterization and later validated by complementary methods.https://journals.matheo.si/index.php/ACSi/article/view/2458peptideepitope mappingmimotopephage displayantibody
spellingShingle Tomaž Bratkovič
Peter Molek
Epitope mapping of mono- and polyclonal antibodies by screening phage-displayed random peptide libraries
Acta Chimica Slovenica
peptide
epitope mapping
mimotope
phage display
antibody
title Epitope mapping of mono- and polyclonal antibodies by screening phage-displayed random peptide libraries
title_full Epitope mapping of mono- and polyclonal antibodies by screening phage-displayed random peptide libraries
title_fullStr Epitope mapping of mono- and polyclonal antibodies by screening phage-displayed random peptide libraries
title_full_unstemmed Epitope mapping of mono- and polyclonal antibodies by screening phage-displayed random peptide libraries
title_short Epitope mapping of mono- and polyclonal antibodies by screening phage-displayed random peptide libraries
title_sort epitope mapping of mono and polyclonal antibodies by screening phage displayed random peptide libraries
topic peptide
epitope mapping
mimotope
phage display
antibody
url https://journals.matheo.si/index.php/ACSi/article/view/2458
work_keys_str_mv AT tomazbratkovic epitopemappingofmonoandpolyclonalantibodiesbyscreeningphagedisplayedrandompeptidelibraries
AT petermolek epitopemappingofmonoandpolyclonalantibodiesbyscreeningphagedisplayedrandompeptidelibraries