
Principal component analysis (PCA) of protein clusters from the predicted proteomes from SFB-co and four other members of the Clostridiaceae 1. A vector in close proximity of a clostridia strain indicates that the protein cluster is highly enriched in that particular strain. The length of a vector indicates the magnitude of influence of that particular protein cluster in relation to all clusters, in explaining differences in clostridia proteome composition. See Supplemental Figure S7 for PC3 versus PC4.











