References

Liu, Q., Li, M. Z., Leibham, D., Cortez, D., and Elledge, S. J. (1998)
Current Biology 8:1300-1309.
(Cre-lox recombination system)

Wu, F., Levchenko, I., and Filutowicz, M. (1995)
Journal of Bacteriology 177:6338-6345.
(R6Ky origin core replicons)

Wentzell, L. M., Nobbs, T. J., and Halford, S. E. (1995)
Journal of Molecular Biology 248:581-595.
(Detailed enzymatic description of SfiI)