Profiling of isovalertatin family aminooligosaccharides extracted from the culture of Streptomyces luteogriseus by using liquid chromatography/electrospray ionization mass spectrometry.
Anal Chem
; 73(16): 3808-15, 2001 Aug 15.
Article
en En
| MEDLINE
| ID: mdl-11534701
ABSTRACT
A rapid and novel procedure using the liquid chromatography coupled to an electrospray ionization ion trap mass spectrometry technique was applied for the profiling of isovalertatin-family aminooligosaccharides in the extract from the culture filtrate of Streptomyces luteogriseus. The aminooligosaccharides were separated on a C-8 reversed-phase column with an acetonitrile-alkaline water gradient. The desired homologues were detected using the multiple reaction monitoring mode, and the chemical structures were confirmed by analyzing the characteristic fragment ions in their collision-induced dissociation spectra. This facile procedure led to the identification of all the five known aminooligosaccharides, isovalertatins M03, M13, M23, D03, and D23, in addition to the characterization of at least 41 novel isovalertatins, the molecular weights of which ranged from 729 to 2,793. This kind of assay should be intended as a simple and convenient way for the high-throughput analysis of screening aminooligosaccharides and potentially other structural families of natural products.
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Banco de datos:
MEDLINE
Asunto principal:
Oligosacáridos
/
Streptomyces
/
Cromatografía Líquida de Alta Presión
/
Espectrometría de Masa por Ionización de Electrospray
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Anal Chem
Año:
2001
Tipo del documento:
Article