This study has used publicly available MS/MS spectra for bile-acid-selective ion patterns to identify thousands of polyamine bile amidates. It highlights the existence of many more bile acid modifications than previously recognized and the value of leveraging public large-scale untargeted metabolomics data to discover metabolites.

https://www.cell.com/cell/fulltext/S0092-8674(24)00185-5?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0092867424001855%3Fshowall%3Dtrue
(open access)