New cloning vectors with temperature-sensitive replication
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Updated: Oct 26, 2026

A Seamless Cloning Approach for Porcine Reproductive and Respiratory Syndrome Virus Expression Vector Construction
Published on: May 17, 2024
1Department of Microbiology, Iowa State University, Ames, Iowa, 50011, USA.gregory@iastate.edu
Abstract:
A series of cloning vectors with conditional, temperature-sensitive replication that are selectable with ampicillin, chloramphenicol, and kanamycin has been constructed. These vectors are derivatives of a pSC101 mutant that can replicate only at low temperatures. The cloning vectors carry a number of unique restriction sites and provide for screening of recombinant plasmids by alpha complementation. These vectors have proven useful for a variety of applications where conditional replication of a recombinant plasmid is desired.
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