Fig. 4
From: The impact of sequence database choice on metaproteomic results in gut microbiota studies
Taxonomic annotation of human and mouse gut metaproteomic data obtained using different databases. DBs were made up of reads (dark blue, R-A) or contigs (red, C-A) from gut metagenomes of all subjects analyzed for each host species, or all bacterial sequences deposited in UniProt (turquoise, UP-B). The annotation tools used were MEGAN (MEG) and Unipept (Up). a Histograms showing the mean number (N = 3, with error bar indicating standard error of the mean) of non-redundant peptides identified (tot) and annotated at different taxonomic levels (p phylum; c class; o order; f family; g genus; s species) in human (left) and mouse (right) samples. b PCA plots of taxa abundances, with each dot indicating a different human (left) or mouse (right) subject