High-throughput epitope identification for snakebite antivenom

 

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Autors: Engmark, Mikael Gerling, de Masi, Federico, Laustsen, Andreas Hougaard, Gutiérrez, José María, Lomonte, Bruno, Andersen, Mikael Rørdam, Lund, Ole, Department of Systems Biology, Technical University of Denmark
Format: póster de congreso
Data de publicació:2015
Descripció:In this study, a high-throughput peptide microarray approach was used to identify linear epitopes in 966 toxin sequences from pit vipers (family Crotalidae), focusing mainly on snake venom metalloproteinases and phospholipase A₂s—two major toxin families present in the venoms used to produce the ICP Crotalidae antivenom. Peptide libraries were generated in silico, synthesized on microarrays, and screened for antibody binding. The resulting peptide signal intensities were mapped back onto toxin amino acid sequences and structural models to localize epitopes. The identified epitopes were found to be surface-exposed and highly conserved among pit viper species, indicating potential cross-recognition by the antivenom. The study demonstrates that custom high-density peptide microarrays can efficiently map epitopes across hundreds of toxins and predict antivenom cross-reactivity based on sequence conservation, providing a valuable tool for the rational design of next-generation snakebite antivenoms.
Pais:Kérwá
Institution:Universidad de Costa Rica
Repositorio:Kérwá
Idioma:Inglés
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/104655
Accés en línia:https://hdl.handle.net/10669/104655
https://doi.org/10.13140/RG.2.2.26264.39680
Paraula clau:epitope mapping
peptide microarray
snake venom
antivenom
cross-reactivity
metalloproteinase
phospholipase A2