Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
By applying the logic of conditional enzymes, we have developed a zinc-finger-dependent recombinase system, the editing activity of which is induced by zinc finger DNA binding. The system combines the precision of recombinases with the DNA target site programmability of zinc finger domains.
Many questions on the activity of the Ras proto-oncogene are unanswered due to the lack of tools for detecting active Ras in living cells. Here, we used protein design and structure prediction algorithms to develop biosensors that detect the activity and environment of endogenous Ras.