Programming protein interaction is probably very very hard. Comlexity akin to exploiting buffer overflows or writing quines. Thus each new protein will need to

Programming protein interaction is probably very very hard. Comlexity akin to exploiting buffer overflows or writing quines. Thus each new protein will need to be designed separately. We can make a programming language governing (turing-complete?) gene expression - suppressing or promoting genes which may suppress or promote genes based on conditions. But in the end we need to control some bio-active proteins, which are much harder to invent.