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Updated: Aug 19, 2026

Subcloning Plus Insertion (SPI) - A Novel Recombineering Method for the Rapid Construction of Gene Targeting Vectors
Published on: January 8, 2015
A single-stage polymerase-based protocol for the introduction of deletions and insertions without subcloning
John C Salerno1, Rachel J Jones, Eda Erdogan
1Biology Department, Rensselaer Polytechnic Institute, Science Center, 1W14, 110 8th St., Troy, NY 12180, USA. salers2@rpi.edu
Abstract:
A single-stage polymerase-based procedure is described that allows extensive modifications of DNA. The version described here uses the QuikChange Site-Directed Mutagenesis System kit supplied by Stratagene. The original protocol is replaced by a single-stage method in which linear production of complementary strands is accomplished in separate single primer reactions. This has proved effective in introducing insertions and deletions into large gene/vector combinations without subcloning.
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