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Cysteine oxygenase

Cysteine oxygenase 1. General properties, Physiol. Chem. Physics, 1 1-23 (1969)... [Pg.185]

In this context it is important to examine the tissue levels of cysteine oxygenase and cysteamine oxygenase activities in order to distinguish, if possible, the relative contribution of CSA pathway and cysteamine pathway in TAU biosynthesis. [Pg.189]

Cysteine oxygenase activity was determined in the stand-ard conditions reported by Yamaguchi (10) with 20 jjmoles... [Pg.189]

Sequences of proteins containing Rieske-type clusters have been deduced from the complete operons of several dioxygenases these dioxygenases require electrons from NAD(P)H to convert aromatic compounds to cis-arene diols. The water-soluble dioxygenase systems consist of a reductase and a terminal dioxygenase many dioxygenases also contain a [2Fe-2S] ferredoxin (20). The terminal oxygenases contain a Rieske-type cluster and the ferredoxins may contain either a Rieske-type or a 4-cysteine coordinated [2Fe-2S] cluster. [Pg.89]

Heme oxygenase expression. Mainstream smoke trapped in phosphate-buffered saline solutions, in Swiss albino 3T3 fibroblasts, produced dose-dependent and transiently elevated expression of heme oxygenase. Heme oxygenase protein and its mRNA were detectable between 1 and 24 hours after exposure to 0.03 puffs (approx 1 cm / mL of medium). A nearly 50-fold increase in the amount of heme oxygenase mRNA was determined after 8 hours of exposure, compared to control levels. A decrease of more than 60% in glutathione levels was observed after the exposure. No elevated amounts of heme oxygenase mRNA appeared in smoke treated-cells when cysteine was exogenously added . [Pg.312]

Figure 14.7. Pathways for the synthesis of taurine from cysteine. Cysteine sulfinate decarboxylase, EC 4.1.1.29 cysteic acid decarboxylase, EC 4.1.1.29 (glutamate decarboxylase, EC 4.1.1.15) cysteine oxidase, EC 1.13.11.20 cysteamine oxygenase, EC 1.13.11.19 and hypotaurine oxidase, EC 1.8.1.3. Relative molecular masses (Mr) cysteine, 121.2 cysteamine, 77.2 cysteine sulfinic acid, 153.2 cysteic acid, 169.2 hypotaurine, 109.1 and taurine, 125.1. Figure 14.7. Pathways for the synthesis of taurine from cysteine. Cysteine sulfinate decarboxylase, EC 4.1.1.29 cysteic acid decarboxylase, EC 4.1.1.29 (glutamate decarboxylase, EC 4.1.1.15) cysteine oxidase, EC 1.13.11.20 cysteamine oxygenase, EC 1.13.11.19 and hypotaurine oxidase, EC 1.8.1.3. Relative molecular masses (Mr) cysteine, 121.2 cysteamine, 77.2 cysteine sulfinic acid, 153.2 cysteic acid, 169.2 hypotaurine, 109.1 and taurine, 125.1.
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