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Year : 2018  |  Volume : 2  |  Issue : 3  |  Page : 208-212

Immunoinformatic analysis of glycoprotein from bovine ephemeral fever virus

Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization, Karaj, Iran

Correspondence Address:
Dr. Mehran Bakhshesh
Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization, Karaj
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/bbrj.bbrj_71_18

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Background: Bovine ephemeral fever virus (BEFV) is an arthropod-borne virus that is highly infective for cattle and water buffalo. The infection has important economic losses and is common in tropical and subtropical regions. Surface glycoprotein (G protein) of BEFV is an immunogenic transmembrane G protein and responsible for attachment and entrance to host cells. The aim of this study was to determine immune dominant epitopes of the protein through immunoinformatics approaches. Methods: A reference sequence and some other related sequences of the G protein were retrieved. Three-dimensional structure of the protein was modeled and refined. Variation analysis of the protein sequences was done, and signal peptide and transmembrane topology were predicted. Finally, linear and conformational (discontinues) epitopes of the protein were predicted. Consensus linear and conformational epitopes were selected and reported as immunodominant epitopes. Results: Five regions were characterized as hyper variable regions (HVRs). Selected consensus epitopes included amino acids 46–60 (AA46–60), AA67–74, AA132–149, AA156–188, AA196–225, AA260–282, AA315–456, and AA487–503 were selected as consensus epitopes. Conclusion: Four determined epitopes including AA67–74, AA132–149, AA196–225, and AA315–456 were determined for the first time in this study. Other predicted epitopes in the current study, has been previously identified, however, new start and end regions for them were suggested here. The predicted epitopes may be experimentally tested to confirm as novel immunogenic candidates applicable in preventive and diagnostic tasks.

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