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specific enzyme activity

См. также в других словарях:

  • enzyme activity — the catalytic effect exerted by an enzyme, expressed as units per milligram of enzyme (specific activity) or as molecules of substrate transformed per minute per molecule of enzyme (molecular activity). The conventional unit of enzyme activity is …   Medical dictionary

  • Enzyme inhibitor — Enzyme inhibitors are molecules that bind to enzymes and decrease their activity. Since blocking an enzyme s activity can kill a pathogen or correct a metabolic imbalance, many drugs are enzyme inhibitors. They are also used as herbicides and… …   Wikipedia

  • Enzyme kinetics — is the study of the chemical reactions that are catalysed by enzymes, with a focus on their reaction rates. The study of an enzyme s kinetics reveals the catalytic mechanism of this enzyme, its role in metabolism, how its activity is controlled,… …   Wikipedia

  • Enzyme assay — Beckman DU640 UV/Vis spectrophotometer. Enzyme assays are laboratory methods for measuring enzymatic activity. They are vital for the study of enzyme kinetics and enzyme inhibition. Contents …   Wikipedia

  • Enzyme — Biocatalyst redirects here. For the use of natural catalysts in organic chemistry, see Biocatalysis. Human glyoxalase I. Two zinc ions that are needed for the enzyme to catalyze its reaction are shown as purp …   Wikipedia

  • Specific activity — This article is about the specific activity of an enzyme. A completely different definition of specific activity is used in nuclear sciences and technologies, in which activity is the SI quantity related to the phenomenon of natural and… …   Wikipedia

  • enzyme — /en zuym/, n. Biochem. any of various proteins, as pepsin, originating from living cells and capable of producing certain chemical changes in organic substances by catalytic action, as in digestion. Cf. ase. [1880 85; < MGk énzymos leavened (Gk… …   Universalium

  • Enzyme-activated MR contrast agents — Molecular imaging is broadly defined as the visualization of molecular and cellular processes on either a macro or microscopic level. Because of its high spatial resolution and ability to noninvasively visualize internal organs, magnetic… …   Wikipedia

  • Enzyme — A protein (or protein based molecule) that speeds up a chemical reaction in a living organism. An enzyme acts as catalyst for specific chemical reactions, convertingt a specific set of reactants (called substrates) into specific products. Without …   Medical dictionary

  • enzyme analysis — ▪ diagnostics       in blood serum (serum), measurement (blood analysis) of the activity of specific enzymes (enzyme) in a sample of blood serum, usually for the purpose of identifying a disease. The enzymes normally are concentrated in cells and …   Universalium

  • enzyme — n. a protein that, in small amounts, speeds up the rate of a biological reaction without itself being used up in the reaction (i.e. it acts as a catalyst). An enzyme acts by binding with the substance involved in the reaction (the substrate) and… …   The new mediacal dictionary

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