catalase

Keywords: Alkalophiles, Bacillus, hot springs, catalase, 16S rRNA gene.

3 Catalase (CAT) is one of the powerful antioxidant enzymes because of its highest turnover rate and exists in almost all aerobically respiring organisms.

tuberculosis isoniazid resistance, decreased 50% catalaseperoxidase activity of KatG wt [17,18] Meanwhile, the mutant KatG (Asn238Ser) decreased the catalytic efficiency as 41% for catalase and 52% for peroxidase respectively [11] Wei (2003) reported that the change of catalase-peroxidase activity of the variants katG directly correlated with activity activates INH [17] To know the basis of the change in catalase-peroxidase activity in KatG L19, it was created the structure modeling of the mutant protein.

Results and Conclusions: The analysis of covariance revealed that catalase activity significantly decreased in the Copenhagen football test group after the assessment compared to regular football exercises group.

For this purpose, antioxidant enzyme activities including SOD, GPx and catalase, antioxidant trace elements including copper, zinc and manganese and antioxidant vitamins including vitamin A, vitamin E and vitamin C were evaluated.

Fish liver and kidney tissues are highly endowed with antioxidant enzymes including catalase (CAT), glutathione peroxidase (GPX), superoxide dismutase (SOD), glutathione S-transferase (GST) and glutathione reductase (GR) to protect them from oxidative stress.

and others [31] found that acromegalic as compared with controls had significantly lower levels of catalase activity.

In the initial growth stage, the sugarcane variety RB867515 showed higher activity of the enzymes catalase and ascorbate peroxidase, in comparison to RB962962 and RB92579, which is an indication of its higher tolerance to salinity.

30) Free-radicals-cavenging enzymes such GSH, CAT, and SOD are the first-line cellular defense against oxidative stress, eliminating reactive oxidative stress such as GSH, catalase, superoxide, and hydrogen peroxide and preventing the formation of more reactive hydroxyl radicals.

Catalase Assay Kit, Item number 707002, consisted of Catalase Assay Buffer (2mL of Catalase Assay Buffer diluted with 18 mL of HPLC-grade water), Catalase Sample Buffer (5mL of Catalase Sample Buffer diluted with 45 mL of HPLC-grade water), catalase formaldehyde standard (4, 25 M formaldehyde); Catalase-Control (powder was dissolved in 2 mL of final Sample Buffer; subsequently, 100 [micro]L of reconstituted enzyme was diluted with 1.

Catalase as one of the protective enzymes in plants were evaluated of V.

After the electrophoretic run, the gels were developed using the esterase and catalase enzyme system according to Alfenas (1998) and for peroxidase according to Tanksley and Orton (1983).

The numerous microorganisms contributing to the mineral water's autochthonous microflora do often include significant concentrations in saprophytic microorganisms producing the catalase as an enzyme of oxidoreductases class, a heme-containing chromoproteid making part of the cell's antioxidant system and acting as an antiperoxidant protector agent [2].

Serum uric acid levels and levels of oxidative stress such as serum malondialdehyde (MDA), erythrocyte catalase (CAT), and erythrocyte superoxide dismutase (SOD) were measured before treatment, and after 1 and 3 months of treatment.

For example, mitochondrial expression of a transgenic catalase is more protective against PQ than cytosolic expression in Drosophila melanogaster (11) and Saccharomyces cerevisiae (12); deficiency of the isoform of superoxide dismutase of the mitochondrial matrix results in hypersensitivity to PQ in mice (7) and in Drosophila (13); mitochondrial swelling is one of the earliest ultrastructural changes on PQ exposure in vivo in cultured human lung cells (14).