NDLI: L-Tryptophan catabolism by Rubrivivax benzoatilyticus JA2 occurs through indole 3-pyruvic acid pathway

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L-Tryptophan catabolism by Rubrivivax benzoatilyticus JA2 occurs through indole 3-pyruvic acid pathway

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L-Tryptophan catabolism by Rubrivivax benzoatilyticus JA2 occurs through indole 3-pyruvic acid pathway

Content Provider	Springer Nature Link
Author	Kumavath, Ranjith N. Ramana, Ch. V. Sasikala, Ch.
Copyright Year	2010
Abstract	Rubrivivax benzoatilyticus JA2 utilizes l-tryptophan as the sole source of nitrogen for growth, and it has a doubling time of ~11 h (compared to 8 h with ammonium chloride). With cell free extracts in the presence of 2-oxoglutarate, indole-3-pyruvic acid, indole-3-acetaldehyde, indole-3-acetic acid, isatin, benzaldehyde, gallic acid and pyrogallol were identified using high performance liquid chromatography (HPLC) and liquid chromatography–mass spectroscopy (LC–MS) analysis. The conversion of l-tryptophan into indole 3-pyruvic acid and glutamate by an enzyme aminotransferase was confirmed and the catabolism of indole-3-pyruvic acid via side chain oxidation followed by ring oxidation, gallic acid and pyrogallol were confirmed as metabolites. In addition, the proposed pathway sequential conversion of indole-3-pyruvic acid to the end product of pyrogallol was identified, including an enzymatic step that would convert isatin to benzaldehyde by an enzyme yet to be identified. At this stage of the study, the enzyme tryptophan aminotransferase in R. benzoatilyticus JA2 was demonstrated.
Starting Page	825
Ending Page	832
Page Count	8
File Format	PDF
ISSN	09239820
Journal	Biodegradation
Volume Number	21
Issue Number	5
e-ISSN	15729729
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-03-09
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	l-Tryptophan Indole 3-pyruvic acid Indole 3-acetic acid Tryptophan aminotransferase Rubrivivax benzoatilyticus JA2 Waste Management/Waste Technology Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Terrestrial Pollution Geochemistry Soil Science & Conservation Microbiology
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Environmental Engineering Bioengineering Microbiology

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