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Polyclonal antibodies to the coat protein of Apple stem grooving virus expressed in Escherichia coli: production and use in immunodiagnosis Trop. Plant Pathol.
Nickel,Osmar; Targon,Maria L.P.N.; Fajardo,Thor V.M.; Machado,Marcos A.; Trivilin,Ana P..
The coat protein gene of Apple stem grooving virus (ASGV) was amplified by RT-PCR, cloned, sequenced and subcloned in the expression vector pMal-c2. This plasmid was used to transform Escherichia coli BL21c+ competent cells. The ASGV coat protein (cp) was expressed as a fusion protein containing a fragment of E. coli maltose binding protein (MBP). Bacterial cells were disrupted by sonication and the ASGVcp/MBP fusion protein was purified by amylose resin affinity chromatography. Polyclonal antibodies from rabbits immunized with the fusion protein gave specific reactions to ASGV from infected apple (Malus domestica) cv. Fuji Irradiada and Chenopodium quinoa at dilutions of up to 1:1,000 and 1:2,000, respectively, in plate trapped ELISA. The ASGVcp/MBP...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Recombinant antigen; Latent virus; ELISA; Malus domestica.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582004000500017
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