title: The alpha subunit of toluene dioxygenase from Pseudomonas putida F1 can accept electrons from reduced FerredoxinTOL but is catalytically inactive in the absence of the beta subunit.
abstract: The oxygenase component of toluene dioxygenase from Pseudomonas putida F1 is an iron-sulfur protein (ISPTOL) consisting of alpha (TodC1) and beta (TodC2) subunits. Purified TodC1 gave absorbance and electron paramagnetic resonance spectra identical to those given by purified ISPTOL. TodC1 was reduced by NADH and catalytic amounts of ReductaseTOL and FerredoxinTOL. Reduced TodC1 did not oxidize toluene, and catalysis was strictly dependent on the presence of purified TodC2.
authors.affiliation: Department of Microbiology and Center for Biocatalysis and Bioprocessing, The University of Iowa, Iowa City, Iowa 52242, USA.
authors.forename: H
authors.initials: H
authors.lastname: Jiang
authors.forename: R E
authors.initials: RE
authors.lastname: Parales
authors.forename: D T
authors.initials: DT
authors.lastname: Gibson
mesh_terms: D002384:Catalysis; D004579:Electron Transport; D005288:Ferredoxins / Q000378:metabolism; D005798:Genes, Bacterial; D007700:Kinetics; D010084:Oxidation-Reduction; D010105:Oxygenases / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism*; D011487:Protein Conformation; D016958:Pseudomonas putida / Q000201:enzymology* / Q000235:genetics
chemical_list: D005288:Ferredoxins; D010105:Oxygenases; C023172:toluene dioxygenase