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Cofactor-independent oxidases and oxygenases
Applied Microbiology and Biotechnology, 2010Whereas the majority of O(2)-metabolizing enzymes depend on transition metal ions or organic cofactors for catalysis, a significant number of oxygenases and oxidases neither contain nor require any cofactor. Among the cofactor-independent oxidases, urate oxidase, coproporphyrinogen oxidase, and formylglycine-generating enzyme are of mechanistic as well
Fetzner S., Steiner R.
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Practical issues in the application of oxygenases
Trends in Biotechnology, 2003Oxygenases carry out the regio-, stereo- and chemoselective introduction of oxygen in a tremendous range of organic molecules. This versatility has already been exploited in several commercial processes. There are, however, many hurdles to further practical large-scale applications.
Wouter A. Duetz +3 more
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Oxidoreductases and Oxygenases
1984Oxidoreductases (dehydrogenases or oxidases) catalyze the addition or the removal of hydrogen or electrons. Oxygenases bring about the incorporation of oxygen which originates from molecular oxygen.
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, 2002 Oxidative stresses such as oxidant stimuli, inflammation, exposure to xenobiotics, and ionizing irradiation elicit various tissue injuries and provoke cellular responses, principally involving transcriptional activation of genes encoding proteins which participate in the defense reactions (Camhi et al., 1995).
Reiko Akagi +4 more
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Oxygenases and Oxidases:Hypothesis
1983I thank Professors Sund and Ullrich for their kind invitation to join this celebration of Otto Warburg’s 100th birthday. It is now more than 50 years since he and Negelein established cytochrome a3 as the “oxygen transporting” or autoxidizable component of the respiratory chain (Warburg and Negelein 1928), laying foundations for the modern structure of
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Diversity of chloroaromatic oxygenases
Current Opinion in Biotechnology, 1993Abstract Chloroaromatic compounds are widely used and may cause serious pollution. Aerobic biodegradation of some chloroaromatics by microorganisms has been studied extensively and an increasing number of oxygenase genes responsible for the degradation of aromatic compounds, including chloroaromatics, are being characterized. Chloroaromatic-degrading
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2014
Many microbial pathogens are known to possess heme acquisition systems that allow the organisms to utilize heme or heme-bound proteins as sources of iron. These systems have been demonstrated to procure iron from heme, hemoglobin, haptoglobin, or hemopexin and are identified as nonsiderophore heme iron acquisition systems.
Melanie Ratliff-Griffin +2 more
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Many microbial pathogens are known to possess heme acquisition systems that allow the organisms to utilize heme or heme-bound proteins as sources of iron. These systems have been demonstrated to procure iron from heme, hemoglobin, haptoglobin, or hemopexin and are identified as nonsiderophore heme iron acquisition systems.
Melanie Ratliff-Griffin +2 more
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Ribulose Biphosphate Oxygenase
1985Ribulose biphosphate oxygenase/carboxylase is a very interesting enzyme in several respects. It is the enzyme that provides the glycolate associated with photorespiration in C3 plants by catalyzing the reaction of the substrate with molecular oxygen (Metzler, 1977).
Damon L. Meyer, Llyod L. Ingraham
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1962
Publisher Summary This chapter focuses on phenolytic oxygenases. Oxygenases are found in all types of living organisms and perform a variety of functions. The insertion of molecular oxygen into organic substrates has been demonstrated in many enzymic systems involving a variety of molecular structures.
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Publisher Summary This chapter focuses on phenolytic oxygenases. Oxygenases are found in all types of living organisms and perform a variety of functions. The insertion of molecular oxygen into organic substrates has been demonstrated in many enzymic systems involving a variety of molecular structures.
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