Fluorescence response of the DZ OR gate in the presence of EV71 and coxsackievirus sequences. F-Sub, DZa-I, DZb-I, DZa-II, DZb-II, DZa-III and DZb-III were incubated in the absence (control) or presence of 10 nM EV-I or Cox-I series (A); 10 nM EV-II or Cox-II series (B); and 10 nM EV-III or Cox-III series (C). Fluorescence at 517 nm (λex = 485 nm) was registered after 3 h of incubation at 28°C. The data of 3 independent experiments with standard deviations are presented.