Mixed Function Oxidation

Mixed function oxidation. IV. An induced methylene hydroxylase in camphor oxidation.

In our earlier studies of mixed function oxidation the bicyclic monoterpene (+)-camphor (24) was used as enzyme inducer and carbon source for growth of Pseudomonas putida,1 strain Cr. The reaction sequence formulated for camphor oxidation (5) is indicated in Fig. 1: I + II + III + VII + IX ---f X with IV as a side product. A cell extract of strain C1 also forms 1,2-campholide (V) from camphor (...

Kinetics of CH4 oxidation in mixed culture.

Microbial cultures used for methane oxidation experiments were prepared by enriching under a 20 % CH4 atmosphere either leachate extracts from two different landfill sites or a digested sewage sludge. No microbes were axenically isolated, therefore the cultures were mixtures of CH4 oxidising and other aerobic microorganisms. CH4 oxidation experiments were carried out with a batch reactor, whose...

Sequence of a peptide susceptible to mixed-function oxidation. Probable cation binding site in glutamine synthetase.

Mixed-function oxidation of glutamine synthetase from Escherichia coli causes loss of catalytic activity. The inactivation correlates with the loss of 1 of 16 histidine residues/subunit (Levine, R.L. (1983) J. Biol. Chem. 258, 11823-11827). A cyanogen bromide peptide containing the oxidizable histidine has been isolated. Within the protein, the sequence is Met-His-Cys-His-Met. This hydrophilic ...

Evidence for the participation of cytochrome b 5 in hepatic microsomal mixed-function oxidation reactions.

A Study of Cerium–Manganese Mixed Oxides for Oxidation Catalysis

Cerium–manganese mixed oxides with compositions of Ce0.5Mn0.5O1.75 and Ce0.8Mn0.2O1.9 were prepared by the citric-acid (Pechini) method and their catalytic properties were compared to CeO2 and Mn2O3. The mixed oxides exhibited higher specific rates than either CeO2 or Mn2O3 for oxidation of both methane and nbutane. While XRD measurements of the mixed oxides suggested that the materials had pri...