Comparison of protein expression levels across disease categories.

<p>(<b>A</b>) Boxplots depicting the distribution of the fraction of the metagenomes with PSMs. Boxes indicate 25^th, 50^th and 75^th percentile, with whiskers representing 10^th and 90^th percentile points. (<b>B</b>) Gene family richness as measured by the number of KEGG Orthologous group (KO) matches in the metagenomic dataset. Grey = Healthy, Blue = CCD, Red = ICD.