Flavin-containing monooxygenase (FMO, EC1.14.13.8) comprises a family of
xenobiotic-metabolizing enzymes that catalyze the oxygenation of a wide variety of
xenobiotics, most commonly nitrogen and sulfur. Mammals express five different FMOs
in a species- and tissue- specific manner. FMO2, is expressed predominantly in lung and
differs from other FMOs in that...
Butane-grown cells of Pseudomonas butanovora, Nocardioides sp. CF8 and Mycobacterium vaccae JOB5 were tested for their ability to cooxidize methane, ammonia and ethylene. Less than 10 nmol of methane were degraded by each of the bacteria (0.17-0.35 mg protein) in 30 minutes. Hydroxylamine and nitrite accumulated when Nocardioides CF8 and...
Sulfur is one of the six elements required during the early stages of the evolution of life, and enzymes involved in sulfur transfer and oxidation are increasingly being recognized as potential drug targets for antimicrobials as well as for therapies for cancer, neurodegenerative and inflammatory diseases. Bacteria are able to...
The regulation of monooxygenase enzymes has been demonstrated in bacteria that grow on methane and long chain-length alkanes (>C10). Less is known about monooxygenase regulation in short chain alkane oxidizing bacteria that grow on intermediate chain-length alkanes C2-C10. This dissertation focuses on the regulation of butane monooxygenase (BMO) expression and...
Multiple drug resistance (MDR) Tuberculosis (TB), leads to increased use of “second-line” drugs; one of the most effective is ethionamide (ETA). ETA is a prodrug metabolized by a mycobacterial flavin-containing monooxygenase (EtaA) as well human flavin-containing monooxygenases (FMOs). Of the five functional FMOs of humans, FMOs 1, 2, and 3...
Graphium sp., a eukaryotic alkanotroph, is able to oxidize small-molecular weight gaseous n-alkanes, diethyl ether and the branched ether, methyl tert butyl ether
(MTBE). However, information regarding the biochemistry of fungal-mediated alkane and ether metabolism is limited, and questions regarding the identity of alkane oxidation catalysts and the genetic underpinnings...