Genetic manipulation of mouse embryonic stem cells by mutant lambda integrase.

Abstract excerpt

Mutant lambda integrases catalyze site-specific recombination reactions inside mammalian cells. Here we demonstrate that the integrase system can be used to eliminate resistance marker genes from the genome of mouse embryonic stem cells. So-called integrative and excisive recombination pathways led to the precise deletion of the neomycin gene, which was inserted together with a flanking pair of directly repeated...

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