Fig. 2: Summary of taxon-specific markers.
From: Universal, untargeted detection of bacteria in tissues using metabolomics workflows
a PCA scores plot of the dataset used to derive TSMs (n = 597 isolates belonging to 233 bacterial species). Circles represent Gram-positive, triangles represent Gram-negative species. The percentage of variance explained by PCs 1 and 2 are given in the axes labels. b Representation of all TSMs (n = 359) found on different phylogenetic (taxonomic) levels as a function of m/z value. Circle size indicates the area under the curve (AUC) from the receiver operating characteristic (ROC) curve. A detailed list including p- and AUC values can be found in Supplementary Data 2. c Summary of the number of TSMs by phylogenetic level. d Summary of TSMs found on species level. All panels are coloured by phylum (purple: Actinobacteria, blue: Bacteroidetes, petrol: Firmicutes, yellow: Proteobacteria, green: Fusobacteria). A further breakdown of markers on each phylogenetic level can be found in Supplementary Fig. 1. Source data are provided as a Source Data file.
