Vectors, Plasmids and Libraries
In molecular cloning, vectors are DNA molecules used to artificially deliver foreign genetic material into another cell. The four major types of vectors are plasmids, viral vectors, cosmids, and artificial chromosomes, with the most commonly used of these being plasmids. Vectors may be used for cloning, and certain vectors are specifically tailored to that exact purpose, while others may be designed specifically for transcription and protein expression. Simpler transcription vectors are used to amplify their inserted genetic material.
Vector, pBR322, MP Biomedicals
Supplier: MP Biomedicals
pBR322 is a 4363 bp vector purified from Escherichia coli. It is one of the most commonly used cloning vectors, that confers resistance to ampicillin and tetracycline. It contains single restriction sites for Pst I and Pvu I within the ampicillin-resistance gene (ampr) and single restriction sites for BamH I, Sal I, Sph I, EcoR V, Nru I and Xma III within the tetracycline-resistance gene (tetr).
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Vector, pUC 18, MP Biomedicals
Supplier: MP Biomedicals
pUC 18 is a small vector of approximately 2,7 Kb containing the Pvu II/EcoR I fragment of pBR322 and the lacZ gene multiple cloning site from M13mp18.