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Grapevine leafroll-associated virus 3 (GLRaV-3) is a major pathogen of grapevine. A previously described single-chain fragment variable (scFv) antibody (scFvLR3), directed against the coat protein (CP) of GLRaV-3, was expressed in Escherichia coli and used to develop a diagnostic ELISA kit. The antibody was fused to the light chain constant domain of human immunoglobulin to create the bivalent reagent...
Pathogen-specific recombinant antibodies have been used to characterize pathogen infections and to engineer resistance in crops. We selected a single-chain antibody fragment (scFvLR3cp-1) specific for the coat protein of grapevine leafroll-associated virus 3 (GLRaV-3), one of the agents of grapevine leafroll (GLR) disease, from a phage display library. The antibody binds specifically to the entire...
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