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MAK054 Sigma-Aldrich

α-Ketoglutarate Assay Kit

sufficient for 100 colorimetric or fluorometric tests

  •  NACRES NA.84



General description

α-Ketoglutarate (α-KG) is a key intermediate in the Tricarboxylic Acid (TCA) Cycle, formed by the oxidative decarboylation of isocitrate by isocitrate dehydrogenase. The synthesis of α-KG from glutamate by glutamate dehydrogenase is a key TCA cycle anaplerotic reaction. α-KG is an important nitrogen transporter. This α-Ketoglutarate Assay Kit provides a simple, sensitive and rapid means for quantifying α-KG in a variety of samples.


α-Ketoglutarate Assay Kit has been used to determine the activity of α-ketoglutarate.


Suitable for the measurement of a-Ketoglutarate in a variety of biological samples including cell and tissue lysates


α-KG concentration is determined by a coupled enzyme assay, which results in a colorimetric (570 nm)/ fluorometric (λex = 535/λem = 587 nm) product, proportional to the α-KG present. Typical sensitivities of detection for this kit are 0.01 to 10 nmoles.

Safety & Documentation

Safety Information

NA 1993 / PGIII
Flash Point(F) 
188.6 °F
Flash Point(C) 
87 °C
Protocols & Articles


Chiral LC-MS/MS of D- and L-2-Hydroxyglutaric Acid Biomarkers

Chiral 2-hydroxyglutarates (2-OHG) are important molecular signatures of their specific biochemical pathways and inborn errors of metabolism, for both healthy and diseased biological cells. For examp...
Roland Wöhlgemuth, Rudolf Köhling, Hugh Cramer
Reporter Volume 31.3
Keywords: Asymmetric synthesis, Cancer, Citric Acid Cycle, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Metabolism, Metabolites, Phase transitions, Reductions, Separation

Glutamine Metabolism is Dysregulated in Many Cancer Cells

Proliferatively active cells require both a source of carbon and of nitrogen for the synthesis of macromolecules. Although a large proportion of tumor cells utilize aerobic glycolysis and shunt metab...
BioFiles v7 n4
Keywords: Aerobic, Cancer, Citric Acid Cycle, Gene expression, Glycolysis, Metabolism, Metabolites, Phosphorylations, Transcription

LCMS Separation and Identification of 2-Hydroxyglutarates

Sigma-Aldrich has recently developed an application for the separation and identification of S-2-hydroxyglutaric acids and R-2-hydroxyglutaric acids by chiral LC-MS, using a CHIROBIOTIC® R Column (co...
Keywords: AGE, Cancer, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Metabolism, Reductions, Separation, Tools

Peer-Reviewed Papers


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