Requirement of Three Protein Fractions for Xylene and Toluene Hydroxylation inPseudomonas aeruginosa
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منابع مشابه
Dioxygen Activation and Substrate Hydroxylation by the Hydroxylase Component of Toluene/o-xylene Monooxygenase
Non-heme carboxylate-bridged diiron centers in the hydroxylase components of the bacterial multicomponent monooxygenases activate dioxygen at structurally homologous active sites. Catalysis requires the management of four substrates: electrons, protons, dioxygen, and hydrocarbons. Protein component complexes control the delivery of these substrates to the diiron center in the hydroxylase ensuri...
متن کاملSkin absorption of toluene, styrene, and xylene by man.
We have investigated the skin absorption of liquid toluene and of solutions of toluene in water by the methods we used for ethylbenzene (Dutkiewicz and Tyras, I967). The absorption rate of liquid toluene was I4-23 mg./cm.2/hr in I0 estimations on nine subjects. Absorption of toluene from an aqueous solution was proportional to the concentration (Figure). For equal concentrations the rate was on...
متن کاملMetabolism of benzene, toluene, and xylene hydrocarbons in soil
Enrichment cultures obtained from soil exposed to benzene, toluene, and xylene (BTX) mineralized benzene and toluene but cometabolized only xylene isomers, forming polymeric residues. This observation prompted us to investigate the metabolism of 14C-labeled BTX hydrocarbons in soil, either individually or as mixtures. BTX-supplemented soil was incubated aerobically for up to 4 weeks in a sealed...
متن کاملComponent Interactions and Electron Transfer in Toluene/o-Xylene Monooxygenase
The multicomponent protein toluene/o-xylene monooxygenase (ToMO) activates molecular oxygen to oxidize aromatic hydrocarbons. Prior to dioxygen activation, two electrons are injected into each of two diiron(III) units of the hydroxylase, a process that involves three redox active proteins: the ToMO hydroxylase (ToMOH), Rieske protein (ToMOC), and an NADH oxidoreductase (ToMOF). In addition to t...
متن کاملSecondary organic aerosol formation from m-xylene, toluene, and benzene
Secondary organic aerosol (SOA) formation from the photooxidation of m-xylene, toluene, and benzene is investigated in the Caltech environmental chambers. Experiments are performed under two limiting NOx conditions; under high-NOx conditions the peroxy radicals (RO2) react only with NO, while under low-NOx conditions they react only with HO2. For all three aromatics studied (m-xylene, toluene, ...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1968
ISSN: 0002-1369
DOI: 10.1080/00021369.1968.10859256