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  • Title: Design and characterization of a plasmid vector system capable of rapid generation of antibodies of multiple isotypes and specificities.
    Author: Morrow MP, Pankhong P, Weiner DB.
    Journal: Biotechnol Lett; 2009 Jan; 31(1):13-22. PubMed ID: 18777012.
    Abstract:
    We present a detailed method for constructing a vector system composed of plasmids encoding immunoglobulin genes that have been constructed in such a fashion so as to allow for the generation and secretion of antibodies of multiple specificities and isotypes via a rapid and easy cloning-and-ligation scheme. Restriction sites within each plasmid allow for the removal of variable domains, constant domains, leader sequences, or the entire immunoglobulin gene. Degenerate primers are used to clone variable regions from hybridoma cDNAs, allowing for the creation of antibodies with varying binding specificities. Sequence-specific primers are used to clone antibody constant domains, allowing for the creation of antibodies of multiple isotypes from a variety of lineages. A high-efficiency leader sequence has been inserted into the start of each gene to improve secretion. Antibodies constructed through this system are efficiently secreted by transfected cells, and are fully functional in antigen-specific binding assays.
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