Cre-loxP system Method for the introduction of genetic modifications into specific genes by homologous recombination using Cre a site-specific, bacteriophage P1-derived recombinase.
The Cre recombinase cuts at the loxP-tagged genes.

SourceBacteriophage P1 protein overexpressed in Escherichia coli. DNA synthetic
Oligomer state2:1 Complex of protein to DNA
Mr38 500 × 2
Amino acids343 × 2
Nucleotides16 d5'(TATAACTTCGTATAGC) and 19 d5'(ATATGCTATACGAAGTTAT) annealed together to give the loxA cognate DNA