Eight Novel Single Chain Antibody Fragments Recognising VP2 of Foot-and-Mouth Disease Virus Serotypes A, O, and SAT 2

Date

2019-05-25

ORCID

Journal Title

Journal ISSN

Volume Title

Publisher

Academic Press Inc.

item.page.doi

Abstract

Foot-and-mouth disease virus (FMDV) exhibits a high degree of antigenic diversity among its serotypes, requiring several anti-FMDV antibodies for its laboratory diagnosis, which complicated the used techniques. To conquer this cumbersome, we developed a new panel of different single-chain fragment variable (scFv) for serotype-independent detection of FMDV. The recombinant VP2 capsid protein, as a relatively conserved protein among FMDV serotypes, was expressed in E. Coli, and injected in mice. Spleen's RNA was extracted for isolating the coding sequences of IgG variable domains that were assembled into repertoires of scFv. Phage library displaying scFv was constructed with ∼1.9 × 10⁸ plaque forming units. Characterization of the library showed eight of unique scFvs, which were expressed as bacterial periplasmic proteins with apparent molecular weight of ∼27 kDa. Our data revealed the broad-spectrum binding affinity of the eight scFvs as both coating and tracing antibodies to FMDV serotypes A, O, and SAT 2. © 2019 Elsevier Inc.

Description

Due to copyright restrictions and/or publisher's policy full text access from Treasures at UT Dallas is limited to current UTD affiliates (use the provided Link to Article).
Supplementary material is available on publisher's website. Use the DOI link below.

Keywords

Foot-and-mouth disease virus, Bacteriophages, Serotyping, Capsid proteins

item.page.sponsorship

Rights

©2019 Elsevier Inc. All Rights Reserved.

Citation