6533b855fe1ef96bd12b0998
RESEARCH PRODUCT
Single-chain variable fragment (scFv) antibodies against rotavirus NSP4 enterotoxin generated by phage display.
Gaspar Pérez-martínezVicente MonederoJesús Rodríguez-díazJavier Buesasubject
RotavirusPhage displayvirusesBlotting WesternImmunoglobulin Variable Regionchemical and pharmacologic phenomenaEnzyme-Linked Immunosorbent AssayEnterotoxinBiologyViral Nonstructural Proteinsmedicine.disease_causeAntibodies ViralEnterotoxinsWestern blotSpecies SpecificityPeptide LibraryVirologyRotavirusmedicineSingle-chain variable fragmentPanning (camera)medicine.diagnostic_testrespiratory systembiochemical phenomena metabolism and nutritionVirologyMolecular biologyImmunoassaybiology.proteinAntibodydescription
The rotavirus non-structural NSP4 protein causes membrane destabilization as well as an increase in intracellular calcium levels in eukaryotic cells and induces diarrhea in young mice, acting as a viral enterotoxin. In this study the phage display technique was used to generate a panel of single-chain variable fragment (scFv) antibodies specific for the NSP4 protein of the human rotavirus strain Wa from a human semi-synthetic scFv library. After several rounds of panning and selection on NSP4 adsorbed to polystyrene tubes, individual scFv were isolated and characterised by fingerprinting and by sequencing the VH and VL genes. The isolated scFv antibodies specifically recognize NSP4 in enzyme immunoassay and in Western blot. Four truncated forms of the NSP4 protein were constructed which allowed us to map the binding region of the selected scFv antibodies to the C-terminal portion of NSP4. The isolated scFv antibodies constitute valuable tools to analyse the mechanisms of NSP4 functions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-04-30 | Journal of virological methods |