Malate Dehydrogenase Assay Kit

• Cat.No.: Kit-2461
• Product Overview: Malate dehydrogenase (MDH) (EC 1.1.1.37) is an enzyme which reversibly catalyzes the oxidation of L-malate to oxaloacetate in the presence of NAD. There are 2 isoforms in eukaryotic cells: MDH1 and MDH2. MDH1 found in the cytoplasm and plays a key part in the malate-aspartate shuttle for transporting malate into the mitochondria. MDH2 is a mitochondrial enzyme which participates in the TCA cycle that reversibly converts L-malate into oxaloacetate. Higher MDH activities are found in some neurodegenerative diseases such as Alzheimer's disease. The non-radioactive, colorimetric MDH assay is based on the reduction of the tetrazolium salt MTT in a NADH-coupled enzymatic reaction to a reduced form of MTT which exhibits an absorption maximum at 565 nm. The increase in absorbance at 565 nm is proportional to the enzyme activity.

Specification

• Tag: Non
• Storage: -20ºC
• Shipping: On Ice
• Size: 100 tests
• Detection method: OD565nm
• Compatible Sample Types: Biological samples (e.g. plasma, serum, erythrocytes, tissue and culture media).
• Features & Benefits: Fast and sensitive. Linear detection range (20 μL sample): 0.5 to 65 U/L for 20 min reaction at 37°C.
  Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day.
• Assay time: 30 min
• Sensitivity: 0.5 U/L