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Evaluation of Cellular Immunity with ASFV Infection by Swine Leukocyte Antigen (SLA)-Peptide Tetramers

Viruses. 2021-11; 
Wenqiang Sun, He Zhang, Wenhui Fan, Lihong He, Teng Chen, Xintao Zhou, Yu Qi, Lei Sun, Rongliang Hu, Tingrong Luo, Wenjun Liu, Jing Li
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Codon Optimization … Full-length genes encoding the protein sequences of ASFV-SY18 p72-B646L, pp62-CP530R, CD2v-EP402R, and p30-CP204L were synthesized (GenScript, Nanjing, China) with codon optimization and cloned into the prokaryotic expression vector pET-32a. The construction … Get A Quote

摘要

African swine fever virus (ASFV) causes acute hemorrhagic fever in domestic pigs and wild boars, resulting in incalculable economic losses to the pig industry. As the mechanism of viral infection is not clear, protective antigens have not been discovered or identified. In this study, we determined that the p30, pp62, p72, and CD2v proteins were all involved in the T cell immune response of live pigs infected with ASFV, among which p72 and pp62 proteins were the strongest. Panoramic scanning was performed on T cell epitopes of the p72 protein, and three high-frequency positive epitopes were selected to construct a swine leukocyte antigen (SLA)-tetramer, and ASFV-specific T cells were detected. Subsequently, the ... More

关键词

African swine fever virus, T cell immune response, T epitopes, p72, protective antigen
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