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Biochemistry of Catabolic Reductive Dehalogenation
Annual Review of Biochemistry, 2017A wide range of phylogenetically diverse microorganisms couple the reductive dehalogenation of organohalides to energy conservation. Key enzymes of such anaerobic catabolic pathways are corrinoid and Fe–S cluster–containing, membrane-associated reductive dehalogenases.
Maeva, Fincker, Alfred M, Spormann
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Biological dehalogenation and halogenation reactions
Chemosphere, 2003A large number of halogenated compounds is produced by chemical synthesis. Some of these compounds are very toxic and cause enormous problems to human health and to the environment. Investigations on the degradation of halocompounds by microorganisms have led to the detection of various dehalogenating enzymes catalyzing the removal of halogen atoms ...
Karl Heinz, van Pée +1 more
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Microbial dehalogenation of trichloroacetic acid
World Journal of Microbiology & Biotechnology, 1992A pure bacterial culture and a two-membered mixed culture were isolated that degraded trichloroacetic acid if a second, readily metabolizable substrate was present in the growth medium. Previous doubts over the microbial dehalogenation of trichloroacetic acid (TCA) may be due to its inability to act as a sole carbon and energy source.
A L, Weightman +2 more
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Sequential dehalogenation of chlorinated ethenes
Environmental Science & Technology, 1986Reductive dehalogenation of tetra- and trichloroethene to cis- and trans-1,2-dichloroethene in microcosms simulating groundwater environment has previously been demonstrated. In this study, anoxic microcosms containing organic sediment and water were spiked to contain 5 mg/L of one of the following compounds: 1,1-dichloroethene (1,1-DCE), cis-1,2 ...
G, Barrio-Lage +3 more
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Biocatalysis by Dehalogenating Enzymes
2007This chapter discusses dehalogenase enzymes and its types. The chapter emphasizes on the microbial origin and distribution of these enzymes, their biochemical properties, and their engineering and use in biocatalysis. Dehalogenases comprise a diverse group of enzymes belonging to different phylogenetic and mechanistic classes.
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The dehalogenation of halouracils by hydroxylamine buffers
Biochemical and Biophysical Research Communications, 1979Abstract At room temperature, hydroxylamine dehalogenates 5-Br-and 5-I-uracil. 5-Cl-uracil reacts to a much less extent. Reaction with 5-F-uracil yields the 6-hydroxyamino-adduct as a product. Kinetics monitored spectrally indicate that dehalogenation involves the formation of a 5-halo-6-hydroxyamino-5, 6-dihydrouracil intermediate which then slowly ...
E G, Sander, J H, Priest, J E, Scheffler
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Environmental Dehalogenation: Chemistry and Mechanism
1998The halogen cycle is one of the great chemical cycles on earth. Haloorganics are both synthesized and destroyed by the chemistry that controls their flux and form. The synthetic leg of the cycle is both biotic and abiotic in nature. The biotic synthesis results primarily from the biochemical activity of marine algae and kelp, although these are by no ...
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