Functional and structural relationship of various extradiol aromatic ring-cleavage dioxygenases ofPseudomonasorigin
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چکیده
منابع مشابه
Identification and functional analysis of two aromatic-ring-hydroxylating dioxygenases from a sphingomonas strain that degrades various polycyclic aromatic hydrocarbons.
In this study, the enzymes involved in polycyclic aromatic hydrocarbon (PAH) degradation in the chrysene-degrading organism Sphingomonas sp. strain CHY-1 were investigated. [14C]chrysene mineralization experiments showed that PAH-grown bacteria produced high levels of chrysene-catabolic activity. One PAH-induced protein displayed similarity with a ring-hydroxylating dioxygenase beta subunit, an...
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Stenotrophomonas maltophilia KB2 is known to produce different enzymes of dioxygenase family. The aim of our studies was to determine activity of these enzymes after induction by benzoic acids in cometabolic systems with nitrophenols. We have shown that under cometabolic conditions KB2 strain degraded 0.25-0.4 mM of nitrophenols after 14 days of incubation. Simultaneously degradation of 3 mM of...
متن کاملIron(II)-catecholate complexes of a monoanionic facial N3 ligand: Structural and functional models of the extradiol cleaving catechol dioxygenases
Two biomimetic iron(II)-catecholate complexes, [(Tp)Fe(CatH)] (1) and [(Tp)Fe(DBCH)] (2) (where Tp = hydrotris(3,5-diphenylpyrazole-1-yl)borate, CatH = monoanionic pyrocatecholate and DBCH = monoanionic 3,5-di-tertbutyl catecholate), have been isolated and characterized to study their reactivity towards dioxygen. The single-crystal X-ray structure of (1) reveals a high-spin iron(II) center liga...
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Exploring the catalytic mechanism of the extradiol catechol dioxygenases T. D. H. Bug*, J. Sanvoisin and E. L. Spence Department of Chemistry, University of Southampton, Highfield, Southampton SO I7 I BJ, Hants., U.K. a
متن کاملAromatic ring cleavage by a Thiobacillus.
As part of a study on the assimilation of organic compounds by autotrophic microorganisms, enrichment cultures were set up for thiobacilli. A facultatively autotrophic Thiobacillus was isolated in pure culture and grew heterotrophically on many organic compounds including p-hydroxybenzoate (PHBz). Since degradation of aromatic compounds is carried out by a limited range of bacterial genera, the...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1994
ISSN: 0378-1097,1574-6968
DOI: 10.1111/j.1574-6968.1994.tb06840.x