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Merck

D2197

Sigma-Aldrich

Diaphorase from Clostridium kluyveri

recombinant, expressed in E. coli, Animal-component free

Sinónimos:

Diaphorase, Lipoamide Dehydrogenase, Lipoyl Dehydrogenase

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100 UNITS
MXP 1,725.00
300 UNITS
MXP 4,508.00
500 UNITS
MXP 5,780.00

MXP 1,725.00


Disponible para envío el07 de abril de 2025Detalles


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100 UNITS
MXP 1,725.00
300 UNITS
MXP 4,508.00
500 UNITS
MXP 5,780.00

About This Item

Comisión internacional de enzimas:
Código UNSPSC:
12352204
NACRES:
NA.54

MXP 1,725.00


Disponible para envío el07 de abril de 2025Detalles


Solicitar un pedido a granel

recombinante

expressed in E. coli

Nivel de calidad

Formulario

solid

actividad específica

>=30 units/mg protein (biuret)

temp. de almacenamiento

−20°C

Descripción general

Research area: Cancer

Aplicación

Diaphorase from Clostridium kluyveri has been used:
  • in lactate dehydrogenase assay in gill cells.[1]
  • impregnated on the strip for formate dehydrogenase assay.[2]
  • in various assays to oxidate β-NADH or β-NADPH in the presence of an electron acceptor.
  • for semiquinone generation during benzoquinone reduction.[3]
  • for evaluation of glucose uptake in cultured muscle cells.[4]
  • in lactate dehydrogenase cytotoxicity assay.[5]

Acciones bioquímicas o fisiológicas

Diaphorase catalyzes the oxidation of either β-NADH or β-NADPH in the presence of an electron acceptor such as methylene blue or 2,6-dichlorophenolindophenol. Diaphorases that are specific for either β-NADH or β-NADPH are known. The pig heart enzyme of Straub seems to have native diaphorase (β-NADH specific) as well as lipoic and lipoamide dehydrogenase activities.

Definición de unidad

One unit of diaphorase will oxidize 1.0 micromole of beta-NADH per minute at pH 7.5 at 25 degrees C, with the corresponding reduction of the appropriate electron acceptor.

Forma física

Supplied as a lyophilized powder containing trehalose.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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The Journal of biological chemistry, 280(24), 22590-22595 (2005-04-21)
Most bacteria contain soluble quinone-reducing flavoenzymes. However, no biological benefit for this activity has previously been demonstrated. ChrR of Pseudomonas putida is one such enzyme that has also been characterized as a chromate reductase; yet we propose that it is
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International Journal of Molecular Sciences, 23(4), 2119-2119 (2022)

Questions

1–2 of 2 Questions  
  1. What is the molecular weight of this diaphorase?

    1 answer
    1. The molecular weight for this product is not determined. However, other sources report a molecular weight of 24,000 daltons for Diaphorase from Clostridium.

      Helpful?

  2. How to prepare stock solution for Diaphorase in order to use 2 units in reaction

    1 answer
    1. For assay purposes, this product is reconstituted 1 mg/ml in cold 200 mM Tris-HCl buffer containing 294 mM Potassium Chloride, 0.54 mM Riboflavin 5'-monophosphate, and 0.025% (w/v) BSA, pH 7.5. The minimum activity of this enzyme is 30 u/mg protein with a minimum protein content of 50%. At the minimum activity and minimum protein content, 2 units of 1 mg/mL stock solution would have a volume of 133 uL. Please see the link below to review a sample or lot-specific Certificate:
      https://www.sigmaaldrich.com/product/sigma/d2197#product-documentation

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