title: Characterization of the chromophores of pyoverdins and related siderophores by electrospray tandem mass spectrometry.
abstract: Characteristic fragment ions of the various chromophores of the pyoverdin siderophore family obtained by collision activated dissociation of the [M+2H]2+ ions are reported allowing unambiguous identification. Tandem mass spectrometrical studies revealed the existence of the first example of a ferribactin with a succinamide side chain, and they add some information to the problem in which way a malic acid side chain is attached to the chromophore.
authors.affiliation: Institut für Organische Chemie der Universität zu Köln, Greinstr. 4, 50939, Köln, Germany. aco88@uni-koeln.de
authors.forename: Herbert
authors.initials: H
authors.lastname: Budzikiewicz
authors.forename: Mathias
authors.initials: M
authors.lastname: Schäfer
authors.forename: Diana Uría
authors.initials: DU
authors.lastname: Fernández
authors.forename: Sandra
authors.initials: S
authors.lastname: Matthijs
authors.forename: Pierre
authors.initials: P
authors.lastname: Cornelis
mesh_terms: D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000737:chemistry; D007477:Ions / Q000737:chemistry*; D008969:Molecular Sequence Data; D015394:Molecular Structure; D009842:Oligopeptides / Q000737:chemistry*; D017262:Siderophores / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D001426:Bacterial Proteins; D007477:Ions; D009842:Oligopeptides; D017262:Siderophores; C042453:pyoverdin