Fig. 2From: Use of an on/off tetracycline riboswitch to control protein production in Komagataella phaffiiDescription of the on-off tetracycline regulation system on mRNA translation. On the absence of tetracycline, the ribosome binds to the mRNA and translates to a protein. When tetracycline is present, the aptamer folds itself into a tridimensional structure that prevents ribosome assembly thus reducing protein productionBack to article page