期刊
ASIAN PACIFIC JOURNAL OF TROPICAL MEDICINE
卷 10, 期 6, 页码 601-608出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apjtm.2017.06.016
关键词
Hendra virus; Nipah virus; Epitope; Encephalitis; Docking; Flanking dipeptides
Objective: To explore a common B-and T-cell epitope-based vaccine that can elicit an immune response against encephalitis causing genus Henipaviruses, Hendra virus (HeV) and Nipah virus (NiV). Methods: Membrane proteins F.G and M of HeV and NiV were retrieved from the protein database and subjected to different bioinformatics tools to predict antigenic B-cell epitopes. Best B-cell epitopes were then analyzed to predict their T-cell antigenic potentiality. Antigenic B-and T-cell epitopes that shared maximum identity with HeV and NiV were selected. Stability of the selected epitopes was predicted. Finally, the selected epitopes were subjected to molecular docking simulation with HLA-DR to confirm their antigenic potentiality in silica. Results: One epitope from G proteins, one from M proteins and none from F proteins were selected based on their antigenic potentiality. The epitope from the G proteins was stable whereas that from M was unstable. The M-epitope was made stable by adding flanking dipeptides. The 15-mer G-epitope (VDPLRYQWRNNSVIS) showed at least 66% identity with all NiV and HcV G protein sequences, while the 15-mer M-epitope (GKLEFRRNNAIAFKG) with the dipeptidc flanking residues showed 73% identity with all NiV and HeV M protein sequences available in the database. Molecular clocking simulation with most frequent MHC class-II (MHC II) and class-I (MHC I) molecules showed that these epitopes could bind within HLA binding grooves to elicit an immune response. Conclusions: Data in our present study revealed the notion that the epitopes from 0 and M proteins might be the target for peptide-based subunit vaccine design against HeV and NiV. However. the biochemical analysis is necessary to experimentally validate the interaction of epitopes individually with the WIC molecules through elucidation of immunity induction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据