Negative autoregulation
= Negative autoregulation
{title2=$\dot X=\beta f(X)-\alpha X,\quad f'(X)<0$}
A <gene> product reduces its own production. This <negative feedback> can stabilize its abundance and shorten the approach to a regulated level. In the strong <logic approximation for gene regulation>, production switches off near a self-repression threshold; a smooth repression law avoids artificial infinitely rapid switching at that threshold.