Author: Shenyang, Gao; Enhui, Zha; Baoxian, Li; Xinyuan, Qiao; Lijie, Tang; Junwei, Ge; Yijing, Li
Title: High-level prokaryotic expression of envelope exterior of membrane protein of porcine epidemic diarrhea virus Cord-id: nrfyryq4 Document date: 2007_7_20
ID: nrfyryq4
Snippet: The truncated fragment M′ gene, encoding the exterior of the viral envelope protein of PEDV, was subcloned into prokaryotic expression vector pGEX-6p-1. The recombinant plasmid pGEX-6p-M′ was constructed and transformed into E. coli BL21(DE3)pLysS for expression. SDS-PAGE analysis showed recombinant truncated M′ protein was highly expressed by pGEX-6p-M′ and the product fusion protein GST-M′ reached 45% in the total bacteria proteins with the analysis of software AlphaImager2200. The p
Document: The truncated fragment M′ gene, encoding the exterior of the viral envelope protein of PEDV, was subcloned into prokaryotic expression vector pGEX-6p-1. The recombinant plasmid pGEX-6p-M′ was constructed and transformed into E. coli BL21(DE3)pLysS for expression. SDS-PAGE analysis showed recombinant truncated M′ protein was highly expressed by pGEX-6p-M′ and the product fusion protein GST-M′ reached 45% in the total bacteria proteins with the analysis of software AlphaImager2200. The preliminary purified recombinant protein was evaluated for its antigenicity and reactivity through Western blotting and indirect enzyme-linked immunosorbent assay (ELISA) with monoclonal antibody against M protein of PEDV and porcine polyclonal anti-PEDV antiserum as the primary antibody. The results indicated the recombinant truncated M′ protein should be candidate as a feasible recombinant diagnostic reagent.
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