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Dive into the research topics where Andreas Schenzle is active.

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Featured researches published by Andreas Schenzle.


Applied and Environmental Microbiology | 2005

Novel Carotenoid Oxidase Involved in Biosynthesis of 4,4′-Diapolycopene Dialdehyde

Luan Tao; Andreas Schenzle; J. Martin Odom; Qiong Cheng

ABSTRACT Biosynthesis of C30 carotenoids is relatively restricted in nature but has been described in Staphylococcus and in methylotrophic bacteria. We report here identification of a novel gene (crtNb) involved in conversion of 4,4′-diapolycopene to 4,4′-diapolycopene aldehyde. An aldehyde dehydrogenase gene (ald) responsible for the subsequent oxidation of 4,4′-diapolycopene aldehyde to 4,4′-diapolycopene acid was also identified in Methylomonas. CrtNb has significant sequence homology with diapophytoene desaturases (CrtN). However, data from knockout of crtNb and expression of crtNb in Escherichia coli indicated that CrtNb is not a desaturase but rather a novel carotenoid oxidase catalyzing oxidation of the terminal methyl group(s) of 4,4′-diaponeurosporene and 4,4′-diapolycopene to the corresponding terminal aldehyde. It has moderate to low activity on neurosporene and lycopene and no activity on β-carotene or ζ-carotene. Using a combination of C30 carotenoid synthesis genes from Staphylococcus and Methylomonas, 4,4′-diapolycopene dialdehyde was produced in E. coli as the predominant carotenoid. This C30 dialdehyde is a dark-reddish purple pigment that may have potential uses in foods and cosmetics.


Applied and Environmental Microbiology | 1997

Catabolism of 3-Nitrophenol by Ralstonia eutropha JMP 134.

Andreas Schenzle; Hiltrud Lenke; Peter Fischer; P. A. Williams; H.-J. Knackmuss


Applied and Environmental Microbiology | 1999

Chemoselective Nitro Group Reduction and Reductive Dechlorination Initiate Degradation of 2-Chloro-5-Nitrophenol by Ralstonia eutropha JMP134

Andreas Schenzle; Hiltrud Lenke; Jim C. Spain; Hans-Joachim Knackmuss


Archive | 2001

GENES ENCODING DENITRIFICATION ENZYMES

J. Martin Odom; Kelley Christine Norton; Andreas Schenzle; Rick W. Ye


Archive | 2002

Genes involved in isoprenoid compound production

Qiong Cheng; Mattheos Koffas; Kelley Christine Norton; James M. Odom; Stephen K. Picataggio; Andreas Schenzle; Jean-Francois Tomb; Pierre E. Rouviere


Journal of Bacteriology | 1999

3-HYDROXYLAMINOPHENOL MUTASE FROM RALSTONIA EUTROPHA JMP134 CATALYZES A BAMBERGER REARRANGEMENT

Andreas Schenzle; Hiltrud Lenke; Jim C. Spain; Hans-Joachim Knackmuss


Archive | 2001

High growth methanotrophic bacterial strain

Mattheos Koffas; James M. Odom; Andreas Schenzle


Archive | 2001

High growth methanotropic bacterial strain

Mattheos Koffas; James M. Odom; Andreas Schenzle


Archive | 2001

High growth methanotrophic bacterial strain methylomonas 16a

Mattheos Koffas; James M. Odom; Andreas Schenzle


Archive | 2001

Souche bactérienne méthanotrophique à forte croissance

Mattheos Koffas; James M. Odom; Andreas Schenzle

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Jim C. Spain

Georgia Institute of Technology

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