NDLI: Structural characterization of arginine-vasopressin and lysine-vasopressin by Fourier- transform ion cyclotron resonance mass spectrometry and infrared multiphoton dissociation.

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Structural characterization of arginine-vasopressin and lysine-vasopressin by Fourier- transform ion cyclotron resonance mass spectrometry and infrared multiphoton dissociation.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Bianco, Giuliana Battista, Fabio Buchicchio, Alessandro Amarena, Concetta G. Schmitt-Kopplin, Philippe Guerrieri, Antonio
Description	Country affiliation: Italy Author Affiliation: Bianco G ( Dipartimento di Scienze, Scuola di Ingegneria, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10); Battista F ( Dipartimento di Scienze, Scuola di Ingegneria, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10); Buchicchio A ( Scuola di Ingegneria, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10); Amarena CG ( Dipartimento di Scienze, Scuola di Ingegneria, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10); Schmitt-Kopplin P ( German Research Center for Environmental Health, Department of BioGeoChemistry and Analytics, Helmholtz Zentrum Munchen); Guerrieri A ( Dipartimento di Scienze, Scuola di Ingegneria, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10)
Abstract	Arginine-vasopressin (AVP) and lysine-vasopressin (LVP) were analyzed by reversed-phase liquid chromatography/mass spectrometry (LC-MS) using Fourier-transform ion cyclotron resonance (FT-ICR) mass spectrometry (MS) electrospray ionization (ESI) in the positive ion mode. LVP and AVP exhibited the protonated adduct [M+H](+) as the predominant ion at m/z 1056.43965 and at m/z 1084.44561, respectively. Infrared multiphoton dissociation (IRMPD), using a CO(2) laser source at a wavelength of 10.6 µm, was applied to protonated vasopressin molecules. The IRMPD mass spectra presented abundant mass fragments essential for a complete structural information. Several fragment ions, shared between two target molecules, are discussed in detail. Some previously unpublished fragments were identified unambiguously utilizing the high resolution and accurate mass information provided by the FT-ICR mass spectrometer. The opening of the disulfide loop and the cleavage of the peptide bonds within the ring were observed even under low-energy fragmentation conditions. Coupling the high-performance FT-ICR mass spectrometer with IRMPD as a contemporary fragmentation technique proved to be very promising for the structural characterization of vasopressin.
File Format	HTM / HTML
ISSN	14690667
Issue Number	3
Volume Number	21
e-ISSN	17516838
Journal	European Journal of Mass Spectrometry
Language	English
Publisher	Sage Publications
Publisher Date	2015-01-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Analytical Discipline Chemistry Techniques Arginine Vasopressin Chemistry Cyclotrons Lypressin Spectrometry, Mass, Electrospray Ionization Methods Spectrophotometry, Infrared Spectroscopy, Fourier Transform Infrared Analysis Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Medicine Atomic and Molecular Physics, and Optics

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