Granadaene: Proposed Structure of the Group B Streptococcus Polyenic Pigment

The goal of this work was to determine the chemical nature of the red pigment produced by Streptococcus agalactiae, which has been thought to be a carotene. We extracted the pigment with 0.1 M KOH and purified it by column chromatography on Sephadex LH. Data from elemental analysis and mass and nucl...

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Bibliographic Details
Published in:Applied and Environmental Microbiology 2006-09, Vol.72 (9), p.6367-6370
Main Authors: Rosa-Fraile, Manuel, Rodríguez-Granger, Javier, Haidour-Benamin, Ali, Cuerva, Juan Manuel, Sampedro, Antonio
Format: Article
Language:English
Subjects:
Analytical chemistry
Bacteria
Biological and medical sciences
Chromatography
Fundamental and applied biological sciences. Psychology
Magnetic Resonance Spectroscopy
Mass Spectrometry
Microbiology
Molecular Structure
Ornithine - analogs & derivatives
Ornithine - chemistry
Ornithine - isolation & purification
Physiology and Biotechnology
Pigments
Pigments, Biological - chemistry
Pigments, Biological - isolation & purification
Polyenes - chemistry
Polyenes - isolation & purification
Streptococcus agalactiae
Streptococcus agalactiae - chemistry
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Summary:The goal of this work was to determine the chemical nature of the red pigment produced by Streptococcus agalactiae, which has been thought to be a carotene. We extracted the pigment with 0.1 M KOH and purified it by column chromatography on Sephadex LH. Data from elemental analysis and mass and nuclear magnetic resonance spectra lead us to propose the structure to be that of a new ornithine rhamno-polyene with 12 conjugated double bonds, to which we have assigned the trivial name granadaene.
ISSN:0099-2240
1098-5336
DOI:10.1128/AEM.00756-06