Product nameHexokinase Activity Assay Kit (Colorimetric)
See all Hexokinase kits
Sample typeSerum, Tissue, Adherent cells, Suspension cells, Tissue Extracts
Assay typeEnzyme activity (quantitative)
Sensitivity< 0.1 mU/well
Assay time1h 00m
Species reactivityReacts with: Mammals, Other species
Hexokinase Activity Assay Kit (ab136957) uses a simple, sensitive and rapid procedure which can detect hexokinase activity to below 0.1 mU/well.
In the hexokinase assay protocol, glucose is converted to glucose-6-phosphate by hexokinase. The glucose-6-phosphate is then oxidized by glucose-6-phosphate dehydrogenase to form NADH. The NADH reduces a colorless probe to a colored product with strong absorbance at 450 nm.
Hexokinase activity assay protocol summary:
- add samples and standards to wells
- add reaction mix and incubate for 20-60 min
- analyze repeatedly with a microplate reader during the incubation
Hexokinases (HK) are found in many organisms including bacteria, plants and mammals and play an important role in glucose metabolism. Hexokinases phosphorylate glucose and generate glucose-6-phosphate for glycolysis. Hexokinases have four isoforms (HK-I, II, III and IV). HK-I, HK-II and HK-III have low Km, while HK-IV has 100 fold high Km.
Storage instructionsStore at -20°C. Please refer to protocols.
Components Identifier 100 tests Assay Buffer WM 1 x 25ml Developer (Lyophilized) Red 1 vial Hexokinase Coenzyme Purple 1 vial Hexokinase Enzyme Mix Green 1 vial Hexokinase Substrate White 1 x 1ml NADH Standard ( lyophilized) Yellow 1 vial Positive Control Orange 1 vial
- Pathways and Processes
- Metabolic signaling pathways
- Energy transfer pathways
- Energy Metabolism
Hexokinase Activity measured in cell lysates showing quantity (nmol) per 1 mln cells after 35 min of incubation.
Samples with the concentration of 5e6 cells/mL were used. Samples were diluted 1-27 fold.
Hexokinase Activity measured in tissue lysates showing quantity (nmol) per mg of extracted protein after 35 min of incubation.
Protein concentration for samples varied from 13 mg/mL to 43 mg/mL. Samples were diluted 1-9 fold.
Standard curve: mean of duplicates (+/- SD) with background reads subtracted
NADH standard curve (a). Hexokinase activity in Positive Control and Jurkat cell lysate (40 µg) (b).
This product has been referenced in:
- Yao J et al. By blocking hexokinase-2 phosphorylation, limonin suppresses tumor glycolysis and induces cell apoptosis in hepatocellular carcinoma. Onco Targets Ther 11:3793-3803 (2018). Read more (PubMed: 30013360) »
- Bramer SA et al. Hexokinase 2 drives glycogen accumulation in equine endometrium at day 12 of diestrus and pregnancy. Reprod Biol Endocrinol 15:4 (2017). Functional Studies ; Horse . Read more (PubMed: 28056994) »