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Fish Shellfish Immunol. 2013 Feb;34(2):724-8. doi: 10.1016/j.fsi.2012.11.041. Epub 2012 Dec 17.

Variable domain antibodies specific for viral hemorrhagic septicemia virus (VHSV) selected from a randomized IgNAR phage display library.

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Aquatic Biotechnology Center, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam, South Korea.


Phage display libraries are used to screen for nucleotide sequences that encode immunoglobulin variable (V) regions that are specific for a target antigen. We previously constructed an immunoglobulin new antigen receptor (IgNAR) phage display library. Here we used this library to obtain an IgNAR V region that is specific for viral hemorrhagic septicemia virus (VHSV). A phage clone (clone 653) was found to be specific for VHSV by the biopanning method. The V region of clone 653 was used to construct a 6 × His tagged recombinant IgNAR-653 V protein (rIgNAR-653) using the Escherichia coli pET system. The rIgNAR-653 protein bound specifically to VHSV, confirming its activity.

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