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  2. Horseradish peroxidase - Wikipedia

    en.wikipedia.org/wiki/Horseradish_peroxidase

    Horseradish peroxidase is a 44,173.9-dalton glycoprotein with six lysine residues which can be conjugated to a labeled molecule. It produces a coloured, fluorimetric [6] or luminescent derivative of the labeled molecule when incubated with a proper substrate, allowing it to be detected and quantified.

  3. Peroxidase - Wikipedia

    en.wikipedia.org/wiki/Peroxidase

    Peroxidases can contain a heme cofactor in their active sites, or alternately redox-active cysteine or selenocysteine residues. The nature of the electron donor is very dependent on the structure of the enzyme. For example, horseradish peroxidase can use a variety of organic compounds as electron donors and acceptors.

  4. Ascorbate peroxidase - Wikipedia

    en.wikipedia.org/wiki/Ascorbate_peroxidase

    Ascorbate peroxidase (or L-ascorbate peroxidase, APX or APEX) (EC 1.11.1.11) is an enzyme that catalyzes the chemical reaction. L-ascorbate + H 2 O 2 dehydroascorbate + 2 H 2 O. It is a member of the family of heme-containing peroxidases.

  5. Glucose oxidase - Wikipedia

    en.wikipedia.org/wiki/Glucose_oxidase

    Glucose oxidase enzyme powder from Aspergillus niger.. GOx is a dimeric protein, the 3D structure of which has been elucidated. The active site where glucose binds is in a deep pocket.

  6. Cofactor (biochemistry) - Wikipedia

    en.wikipedia.org/wiki/Cofactor_(biochemistry)

    The succinate dehydrogenase complex showing several cofactors, including flavin, iron–sulfur centers, and heme.. A cofactor is a non-protein chemical compound or metallic ion that is required for an enzyme's role as a catalyst (a catalyst is a substance that increases the rate of a chemical reaction).

  7. Cofactor engineering - Wikipedia

    en.wikipedia.org/wiki/Cofactor_Engineering

    Cofactor engineering, a subset of metabolic engineering, is defined as the manipulation of the use of cofactors in an organism’s metabolic pathways.In cofactor engineering, the concentrations of cofactors are changed in order to maximize or minimize metabolic fluxes.

  8. Avidin - Wikipedia

    en.wikipedia.org/wiki/Avidin

    Research in the 1970s helped establish the avidin-biotin system as a powerful tool in biological sciences. Aware of the strength and specificity of the avidin-biotin complex, researchers began to exploit chicken avidin and streptavidin as probes and affinity matrices in numerous research projects.

  9. Enzyme assay - Wikipedia

    en.wikipedia.org/wiki/Enzyme_assay

    Enzyme activity is a measure of the quantity of active enzyme present and is thus dependent on various physical conditions, which should be specified. It is calculated using the following formula: