Exploring rotavirus proteome to identify potential B- and T-cell epitope using computational immunoinformatics

Autor: Yengkhom Damayanti Devi, Arpita Devi, Hemanga Gogoi, Bondita Dehingia, Robin Doley, Alak Kumar Buragohain, Ch. Shyamsunder Singh, Partha Pratim Borah, C.Durga Rao, Pratima Ray, George M. Varghese, Sachin Kumar, Nima D. Namsa
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Heliyon, Vol 6, Iss 12, Pp e05760- (2020)
Druh dokumentu: article
ISSN: 2405-8440
DOI: 10.1016/j.heliyon.2020.e05760
Popis: Rotavirus is the most common cause of acute gastroenteritis in infants and children worldwide. The functional correlation of B- and T-cells to long-lasting immunity against rotavirus infection in the literature is limited. In this work, a series of computational immuno-informatics approaches were applied and identified 28 linear B-cells, 26 conformational B-cell, 44 TC cell and 40 TH cell binding epitopes for structural and non-structural proteins of rotavirus. Further selection of putative B and T cell epitopes in the multi-epitope vaccine construct was carried out based on immunogenicity, conservancy, allergenicity and the helical content of predicted epitopes. An in-silico vaccine constructs was developed using an N-terminal adjuvant (RGD motif) followed by TC and TH cell epitopes and B-cell epitope with an appropriate linker. Multi-threading models of multi-epitope vaccine construct with B- and T-cell epitopes were generated and molecular dynamics simulation was performed to determine the stability of designed vaccine. Codon optimized multi-epitope vaccine antigens was expressed and affinity purified using the E. coli expression system. Further the T cell epitope presentation assay using the recombinant multi-epitope constructs and the T cell epitope predicted and identified in this study have not been investigated. Multi-epitope vaccine construct encompassing predicted B- and T-cell epitopes may help to generate long-term immune responses against rotavirus. The computational findings reported in this study may provide information in developing epitope-based vaccine and diagnostic assay for rotavirus-led diarrhea in children's.
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