BACKGROUND: SLE is a complex autoimmune disease with deleterious effects on various organs. Accumulating evidence has shown abnormal vitamin B12 and one-carbon flux contribute to immune dysfunction. Transcobalamin II (TCN2) belongs to the vitamin B12-binding protein family respon...
Folates participate in the one-carbon metabolism (OCM) cycle, supporting many biochemical pathways. Existing methods to profile folate are limited in the diversity of vitamers they measure and the samples they profile. We present a metabolomics workflow for stable extraction, separation, and meas...
Cancer, including head and neck squamous cell carcinoma (HNSCC), induces changes to metabolism that drive the disease. Regional metabolomics can help to understand metabolic variation across the tumour including changes near the tumour core, where hypoxia is likely more pronounced. We apply ultra...
High-affinity iron (Fe) scavenging compounds, or siderophores, are widely employed by soil bacteria to survive scarcity in bioavailable Fe. Siderophore biosynthesis relies on cellular carbon metabolism, despite reported decrease in both carbon uptake and Fe-containing metabolic proteins in Fe-def...
The marine labile dissolved organic carbon (DOC) pool is a dynamic reservoir of thousands of molecules. After excretion or release by phytoplankton and other microbes, metabolites are rapidly consumed, resulting in very low standing concentrations (picomolar to low nanomolar). To date, marine phy...