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protocatechuate/atrofia
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9 resultados
Enhanced detection and characterization of protocatechuate 3,4-dioxygenase in Acinetobacter lwoffii K24 by proteomics using a column separation.
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Acinetobacter lwoffii K24 known as an aniline degrading bacterium has also been found to utilize p-hydroxybenzoate as a sole carbon source. In this study, 2-DE using Q-Sepharose column separation was attempted for fast screening of protocatechuate 3,4-dioxygenase for catabolism of p-hydroxybenzoate
Characterization of a protocatechuate catabolic gene cluster from Rhodococcus opacus 1CP: evidence for a merged enzyme with 4-carboxymuconolactone-decarboxylating and 3-oxoadipate enol-lactone-hydrolyzing activity.
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The catechol and protocatechuate branches of the 3-oxoadipate pathway, which are important for the bacterial degradation of aromatic compounds, converge at the common intermediate 3-oxoadipate enol-lactone. A 3-oxoadipate enol-lactone-hydrolyzing enzyme, purified from benzoate-grown cells of
Cloning, sequencing, and expression of the Pseudomonas putida protocatechuate 3,4-dioxygenase genes.
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The genes that encode the alpha and beta subunits of protocatechuate 3,4-dioxygenase (3,4-PCD [EC 1.13.11.3]) were cloned from a Pseudomonas putida (formerly P. aeruginosa) (ATCC 23975) genomic library prepared in lambda phage. Plaques were screened by hybridization with degenerate oligonucleotides
Key aromatic-ring-cleaving enzyme, protocatechuate 3,4-dioxygenase, in the ecologically important marine Roseobacter lineage.
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Aromatic compound degradation in six bacteria representing an ecologically important marine taxon of the alpha-proteobacteria was investigated. Initial screens suggested that isolates in the Roseobacter lineage can degrade aromatic compounds via the beta-ketoadipate pathway, a catabolic route that
pcaH, a molecular marker for estimating the diversity of the protocatechuate-degrading bacterial community in the soil environment.
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Microorganisms degrading phenolic compounds play an important role in soil carbon cycling as well as in pesticide degradation. The pcaH gene encoding a key ring-cleaving enzyme of the beta-ketoadipate pathway was selected as a functional marker. Using a degenerate primer pair, pcaH fragments were
Cloning and expression of thermophilic catechol 1,2-dioxygenase gene (catA) from Streptomyces setonii.
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Streptomyces setonii (ATCC 39116) degrades various single aromatic compounds such as phenol or benzoate via an ortho-cleavage pathway using catechol 1,2-dioxygenase (C12O). A PCR using degenerate primers based on the conserved regions of known C12O-encoding genes amplified a 0.45-kbp DNA fragment
Genetic diversity of catechol 1,2-dioxygenase in the fecal microbial metagenome.
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Catechol 1,2-dioxygenase is the key enzyme that catalyzes the cleavage of the aromatic ring of catechol. We explored the genetic diversity of catechol 1,2-dioxygenase in the fecal microbial metagenome by PCR with degenerate primers. A total of 35 gene fragments of C12O were retrieved from microbial
Microbial community structure analysis of a benzoate-degrading halophilic archaeal enrichment.
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A benzoate-degrading archaeal enrichment was developed using sediment samples from Rozel Point at Great Salt Lake, UT. The enrichment degraded benzoate as the sole carbon source at salinity ranging from 2.0 to 5.0 M NaCl with highest rate of degradation observed at 4.0 M. The enrichment was also
Catabolic versatility of aromatic compound-degrading halophilic bacteria.
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There is growing interest in the development and optimization of bioremediation processes to deal with environments with high salinity that are contaminated with aromatic compounds. To estimate the diversity of moderately halophilic bacteria that could be used in such processes, enrichments were
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