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Enzymes are proteins that catalyze biochemical reactions. Typically they are highly selective catalysts acting only on specific substrates. Enzymatic activity can affect any number of biological processes. They play important roles in cell cycle regulation and also in metabolism.

Enzymes frequently require organic and inorganic cofactors to assist in catalysis. Like all catalysts, enzymes increase the rate of a reaction by lowering the activation energy. Enzymes, like chemical catalysts, are not consumed by the reactions they catalyze, nor do they alter the equilibrium of these reactions. Most enzyme reaction rates are millions of times faster than those of comparable un-catalyzed reactions and some are so fast that they are diffusion limited. To review all biochemicals offered on this website check the main categories under Life Sciences which include both Thermo Scientific and Alfa Aesar product options.

  • Alcohol Dehydrogenase, yeast, Thermo Scientific
  • beta-Nicotinamide adenine dinucleotide monosodium salt dihydrate, Thermo Scientific
  • beta-Nicotinamide adenine dinucleotide phosphate monosodium salt tetrahydrate, Thermo Scientific
  • beta-Nicotinamide Adenine Dinucleotide, Thermo Scientific
  • Catalase, from bovine liver, Thermo Scientific
  • Cellulase, from Aspergillus niger, Affymetrix/USB
  • DNase I, from bovine pancreas, Thermo Scientific
  • Glucose-6-phosphate dehydrogenase, from Leuconostoc mesenteroides, ammonium sulfate suspension, Thermo Scientific
  • Micrococcal nuclease, Staphylococcus aureus, Thermo Scientific
  • Pancreatin 1X, from porcine pancreas, Thermo Scientific
  • Pepsin, 1:10,000, from porcine stomach, Thermo Scientific
  • Pepsin, from porcine stomach, Thermo Scientific
  • Phosphodiesterase I, from Crotalus adamanteus venom, Thermo Scientific
  • Proteinase K, from Tritirachium album, Thermo Scientific

Chemicals

Life Science

Metals & Materials

Catalysts

Analytical & Labware