Figure 2.
Schematic representation of the double negative feedback loops between miRNAs and transcription factors. (a) In ASEL sensory neurons in C. elegans, a high level of lsy-6 suppresses Cog-1, which controls the expression of miR-273. (b) In ASER, a high level of miR-273 suppresses Die-1, a transcription factor required for lsy-6 expression.