catalase


Also found in: Dictionary, Medical, Acronyms, Encyclopedia, Wikipedia.
Graphic Thesaurus  🔍
Display ON
Animation ON
Legend
Synonym
Antonym
Related
  • noun

Words related to catalase

enzyme found in most plant and animal cells that functions as an oxidative catalyst

Related Words

References in periodicals archive ?
mrigala and effects of its sub-lethal concentration (2/3rd of LC50) on the bioaccumulation and antioxidant activity in term of catalase enzyme assay in the different organs of selected fish species after 90-day exposure.
However, at 50[degrees]C higher catalase rates were found in seeds subjected to mechanical scarification, differing from other treatments, where after 24h of imbibition, the enzymatic activity was of 54.97mkat x [mg.sup.-1], while in the seeds without scarification the rate was of 32.06mkat x [mg.sup.-1] (Figures 3c, d).
Catalase positive, Indole positive, Oxidase positive
Reactive species of oxygen may cause oxidative stress which has been shown to play a major role in the pathogenesis of many diseases such as cancer, hyperlipidemia, diabetes mellitus, metabolic disorders, atherosclerosis, cardiovascular diseases (hypertension, ischemic heart disease, chronic heart failure), and neurodegenerative diseases.1 Most of the antioxidant enzyme genes have susceptibility for polymorphism and may contribute in the alteration of gene expressions and decrease the activity of these enzymes.2 Different metabolic disorders are shown to be associated with the modified antioxidant enzymes functions.3 Catalase (CAT) is one of the powerful antioxidant enzymes because of its highest turnover rate and exists in almost all aerobically respiring organisms.4
The data showed that all the tested isolates had the ability to utilize calf lung tissue in addition to produce catalase, peroxidase whereas 82.5-90% of the tested isolates produced protease, lipase, urease, phospholipase.
Effect of floral preservatives on catalase activity and vase life of cut tuberose spikes Treatment Activity of CAT (units g [tissues.sup.-1] [min.sup.-1]) 3rd day in vase 5th day in vase [V.sub.1] [V.sub.2] [V.sub.1] [V.sub.2] [T.sub.1] 0.057 0.063 0.069 0.073 [T.sub.2] 0.059 0.063 0.078 0.083 [T.sub.3] 0.065 0.070 0.084 0.090 [T.sub.4] 0.003 0.003 0.018 0.020 [T.sub.5] 0.004 0.003 0.051 0.053 [T.sub.6] 0.040 0.043 0.062 0.067 [T.sub.7] 0.002 0.000 0.011 0.013 Control 0.054 0.060 0.069 0.073 Mean 0.036 0.038 0.055 0.059 Factor (V) (T) (V) (T) S.Em 0.0008 0.0016 0.001 0.002 C.D.
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.
Fully-automated spectrophotometric method for measurement of antioxidant activity of catalase. Clinical Biochemistry 33, 525-534.
This was unexpected, as methanogens and especially most mesophilic members of the cytochrome-lacking methanogen orders were predicted to be particularly oxygen-sensitive due to the lack of cytochrome-oxidase and catalase, two heme proteins.
Catalase (CAT) belongs to oxidoreductase family class and has a heme prosthetic group at its active site with ferric ion (Fe(III)) [48, 50, 56-59].
In recent studies [8-12], the kinetic parameters and inhibition mechanisms of enzymes human carbonic anhydrases and catalase in the presence of some boron-containing anions were investigated, among them [K.sub.2][[B.sub.3][O.sub.3][F.sub.4]OH], too.
Following the dismutation reaction, hydrogen peroxide can be catalysed by either GPX or catalase into [H.sub.2]O.
Abbreviations Vit C: Vitamin C RNS: Reactive nitrogen species ROS: Reactive oxygen species FRAP: Ferric reducing antioxidant power TBA: Thiobarbituric acid [H.sub.2] [O.sub.2]: Hydrogen peroxide CAT: Catalase MeOH: Methanol [H.sub.2]O: Distilled water [H.sub.2]O/EtOH: Water/ethanol (70/30; V/V) RMH: Roots MeOH FEO: Leaves [H.sub.2]O ECM: Barks MeOH RHO: Roots [H.sub.2]O ECH: Barks [H.sub.2]O/EtOH FHE: Leaves [H.sub.2]O/EtOH FEM: Leaves MeOH EHE: Barks [H.sub.2]O FRM: Fruits MeOH RHE: Roots [H.sub.2]O/EtOH FRO: Fruits [H.sub.2]O FRH: Fruits [H.sub.2]O/EtOH VIT C: Vitamin C QE: Quercetin Cont pos: Positive control Cont neg: Negative control.