CodY controls the <i>sin</i> locus expression.

<p><b>(A)</b> CodY-6His binding to <i>sin</i> locus promoter region. The <i>tcdR</i> upstream and a non-specific DNA probe was as positive and negative controls respectively. <b>(B)</b> Western blot analysis of UK1 and UK1::<i>codY</i> mutants to detect SinR and SinR’ proteins.</p>