GNPS - Comparative Metabolomic Profiling of Cupriavidus necator B-4383 Revealed Production of Cupriachelin Siderophores, One with Activity Against Cryptococcus neoformans

Data files come from an iron limitation experiment, in biological duplicate, with the strain grown in the same medium either supplemented with or deficient in iron. An additional file included is the crude extract of a large scale preparation for compound isolation under iron limited conditions. In our investigation of cupriachelins photoreactivity with iron, two samples of cupriachelin fractions in PBS buffer were exposed to sunlight and two identical samples were shielded from the sunlight to discover the degradation products from sunlight. Similar procedures (as in photoreactivity) were repeated on samples collected from bacterial cultures grown with glycine and L-asp isotopologues to investigate the biosynthetic origin of the those amino acids. A no injection blank is included with each of these samples set. Also, included are three HPLC fractions from the purification process.