Fig. 3

Metabolic composition of five metatranscriptomic datasets. a Rarefaction analysis indicating the number of unique enzymes (as defined by enzyme classification numbers) captured by increasing numbers of putative mRNA reads generated. b Overlap of enzyme complements across four datasets reveals a common core of 592 enzymes. c Global metabolic network indicating taxonomic representation of metabolic activities within the combined mouse dataset. Pie charts indicate the relative proportion of each taxon, size of pie chart indicates relative expression (see key). Indicated are specific metabolic pathways