Epitope Mapping and Immuno-detection of VP7 Protein of Bluetongue Virus Serotype 1 |
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Authors: | XIONG He-li LI Guo-hua WANG Jin-ping MIAO Hai-sheng SONG Jian-ling LI Hua-chun |
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Institution: | 1. Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Kunming 650224, China;
2. The Animal Health Inspection of Mojiang Country, Mojiang 654800, China |
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Abstract: | In this study,in order to map the key amino epitope of VP7 protein of blue tongue virus serotype 1 (BTV1),we used monoclonal antibody against VP7 protein of BTV1 to screen 7 mer phage display random peptide library. The selected phages including VP7 protein consensus sequence were amplified and purified,immunoreactivity between epitope of selected phages and monoclonal antibody against VP7 of BTV1 was analyzed by ELISA and competitive ELISA (c-ELISA).The result showed that the epitope of phages including LNWPMVR sequence could specially combine monoclonal antibody against VP7 of BTV1,and the combination could be inhibited or blocked by BTV1,it demonstrated that 7 mer phage simulated the antigenic determinant of BTV protein which could combine monoclonal antibody against VP7 of BTV1.The results suggested that the amino acides 163 to 189(LNAGARGDVQQIFQGRNDPMMLYLVWR) were the specific epitope of VP7 protein of BTV. |
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Keywords: | bluetongue virus VP7 protein epitope |
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