Role of tfdC(sub I)D(sub I)E(sub I)F(sub I) and tfdD(sub II)C(sub II)E(sub II)F(sub II) gene modules in catabolism of 3-chlorobenzoate by Ralstonia eutropha JMP134(pJP4)

Article Abstract:

The tfdC(sub I)D(sub I)E(sub I)F(sub I) gene of Ralstonia eutropha appears to code for the enzymes chlorocatechol-1,2-dioxygenase, chloromuconate cycloisomerase, dienelactone hydrolase, whereas the tfdD(sub II)C(sub II)E(sub II)F(sub II) gene codes for maleylacetate reductase.

Genetic aspects, Microbial metabolism, Organochlorine compounds, Organic chlorine compounds

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Efficient degradation of 2, 4, 6- trichlorophenol requires a set of catabolic genes related to tcp genes from Ralstonia eutropha JMP134 (pJP4)

Article Abstract:

Evidence that all tcp genes are clustered in the R. eutropha JMP134 (pJP4) chromosome, forming the putative catabolic operon tcpRXABCYD is provided. Results state that other than strain JMP134, none of the bacterial strains whose genomes are sequenced possess a full set of tcp- like gene sequence.

Biodegradation, Nucleotide sequence, Base sequence

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Chlorophenol hydroxylase encoded by plasmid pJP4 differentially contribute to chlorophenoxyacetic acid degradation

Article Abstract:

Cupriavidus necator JMP134(pJP4) catabolizes 2,4-dichlorophenoxyacetate (2,4-D) and 4-chloro-2-methylphenoxyacetate (MCPA), using tfd functions carried on plasmid pJP4. The results indicate that codification and expression of the two tFdB genes in pJP4 are important to avoid toxic accumulations of clhorophenols during phenoxyacetic acid degradation and that a balance between chlorophenol-producing and chlorophenol-consuming reactions is necessary for growth on these compounds.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Acetic Acid, Analysis, Plasmids, Decomposition (Chemistry), Structure, Chemical properties

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