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An improved phage display vector for antibody repertoire cloning by construction of combinatorial libraries. 1997

R Burioni, and P Plaisant, and V Delli Carri, and A Vannini, and T Spanu, and M Clementi, and G Fadda, and P E Varaldo
Istituto di Microbiologia, Facoltà di Medicina, Università Cattolica del Sacro Cuore, Roma, Italy.

Phagemid pComb3 is a widely used vector for molecular cloning of the antibody repertoire and for production of phage display libraries. However, in practical use, the utilization of this vector has some drawbacks. In this work we describe the construction of pComb3/TIG, an improved, easily manipulated vector for the cloning and display of antibody fragment libraries on the surface of filamentous phage. The two small "stuffer" fragments at the cloning sites were replaced with long DNA fragments, for easier differentiation of the correctly cut forms of the vector. Moreover, in pComb3/TIG the fragment at the heavy-chain-fragment cloning site contains an acid phosphatase-encoding gene. This feature allows the easy distinction of the Escherichia coli cells containing the unmodified form of the phagemid instead of the heavy-chain fragment coding cDNA in a simple plate histochemical assay.

UI MeSH Term Description Entries
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D005822 Genetic Vectors DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition. Cloning Vectors,Shuttle Vectors,Vectors, Genetic,Cloning Vector,Genetic Vector,Shuttle Vector,Vector, Cloning,Vector, Genetic,Vector, Shuttle,Vectors, Cloning,Vectors, Shuttle
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000906 Antibodies Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).
D001435 Bacteriophages Viruses whose hosts are bacterial cells. Phages,Bacteriophage,Phage

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