Extended Data Fig. 1: Lipid structures and fragmentation patterns of BT inositol and ethanolamine lipids.
From: Characterization of inositol lipid metabolism in gut-associated Bacteroidetes
(A) Comparison of LC-MS/MS fragmentation patterns of ΔBT_1525 BT-derived phosphatidylinositol phosphate (PIP-DAG) with the synthetic standard, PI(3)P 18:1/18:1. (B) LC-MS/MS fragmentation patterns of lipid structures present in iSPT BT at 100 ng/mL aTC induction, including phosphoinositol dihydroceramide (PI-DHC) lipids (PI-DHC 34:0(OH), PI-DHC 35:0(OH), PI-DHC 36:0(OH)), PI-DAG 30:0, and PE-DHC 36:0(OH). Loss of the phosphoinositol head group is indicated at mass 259. Fragments characteristic for lipids with phosphoinositol-based headgroups are in red; those for phosphoethanolamine-based headgroups are in blue. Branching patterns of DHC-based lipids are predicted.
