Distribution of upregulated and downregulated protein spots versus molecular weight, pI, and fold change.

<p>In the scatter plots, upregulated protein spots are shown in red and downregulated protein spots are shown in green. The correlation between molecular weight and pI or fold-change ratio is shown in (A) and (B), respectively. Spots with no significant difference in expression are colored gray. The blue line indicates the negative correlation between molecular weight and fold change.