LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Cre-Lox recombination. Molecular model of the enzyme CRE (cyclization recombination) recombinase (purple) mediating the recombination of strands of DNA (deoxyribonucleic acid, pink and green). It is doing this at a specific target sequence, called the Lox sequence, found in the bacteriophage P1. Cre-Lox recombination is used in genetically modified organisms to allow researchers to control gene expression and delete or insert DNA sequences.
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