Fig. 5: A subnetwork of MS2 spectral similarity between annotated features with ArchLips database and unknown features in archaeal pure cultures.

A Diether lipids; (B) tetraether lipids lipid features involved in the FBMN. The filled color of the nodes indicated the distribution of lipid features in four archaeal strains. The color of the inner rings represents annotated features (red), and the color of the outer rings refers to the adduct types. The width of the line connecting the nodes represents the level of mass spectral similarities, with thicker lines indicating greater similarity between two nodes. C The bar chart showing the features with MS2 and associated in FBMN and annotated features retained in FBMN.