There is this 2021 paper where they constructed a logic OR gate protein: https://www.nature.com/articles/s41467-021-26937-x https://www.nature.com/articles/s41

There is this 2021 paper where they constructed a logic OR gate protein: https://www.nature.com/articles/s41467-021-26937-x https://www.nature.com/articles/s41467-021-26937-x Some companies are planning to use them when designing drugs: "only activate this if both antibodies bind"