UNSPECIFIED. (2004) Extraribosomal cyclic tetradepsipeptides beauverolides: profiling and modeling the fragmentation pathways. JOURNAL OF MASS SPECTROMETRY, 39 (8). pp. 949-960. ISSN 1076-5174

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Abstract

Profiling of cyclic tetradepsipeptides beauverolides was tested as a chemotaxonomic tool for fungal strain identification/discrimination. Two new tetradepsipeptides, beauverolides Q and R, were characterized by tandem mass spectrometry. Specific elimination of 113 atomic mass units from both protonated and sodiated molecules of beauverolides is ubiquitous for all 12 most dominant congeners evaluated in this profiling study. Reconstruction of the total ion chromatogram, according to this neutral fragment release, was used for data filtering and selectivity enhancement. Selective ring opening and fragment ion formation of beauverolide I are discussed in detail utilizing high-level theoretical modeling of the fragmentation pathways. Copyright (C) 2004 John Wiley Sons, Ltd.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Journal or Publication Title:	JOURNAL OF MASS SPECTROMETRY
Publisher:	JOHN WILEY & SONS LTD
ISSN:	1076-5174
Date:	August 2004
Volume:	39
Number:	8
Number of Pages:	12
Page Range:	pp. 949-960
Identification Number:	10.1002/jms.674
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/8114

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