Key features and details
- Assay type: Enzyme activity (quantitative)
- Detection method: Colorimetric
- Platform: Microplate reader
- Assay time: 40 min
- Sample type: Cell culture media, Cell culture supernatant, Serum, Tissue Extracts, Urine
- Sensitivity: 0.2 mU/well
Product nameAmylase Assay Kit (Colorimetric)
Sample typeCell culture supernatant, Urine, Serum, Tissue Extracts, Cell culture media
Assay typeEnzyme activity (quantitative)
Sensitivity> 0.2 mU/well
Assay time0h 40m
Species reactivityReacts with: Mammals, Other species
Amylase Assay Kit (Colorimetric) ab102523 detects activity of α-amylase through a two-step reaction.
In the amylase assay protocol, alpha-Amylase will cleave the substrate ethylidene-pNP-G7 to produce smaller fragments that are eventually modified by alpha-glucosidase. This causes the release of a chromophore that can then be measured at OD = 405 nm.
The assay can detect α-amylase content as low as 0.2 mU.
Amylase assay protocol summary:
- add samples and standards to wells
- add reaction mix
- analyze with a microplate reader every 2-3 min for 30-60 min
This product is manufactured by BioVision, an Abcam company and was previously called K711 Amylase Activity Colorimetric Assay Kit. K711-100 is the same size as the 100 test size of ab102523.
Amylases are enzymes that break starch down to sugar molecules. α-amylase is the major form of amylase found in humans and other mammals as well as an enzyme present in seeds, or in fungi (baker's yeast for instance). α-amylase is a calcium metalloenzyme, completely unable to function in the absence of calcium. In human physiology, both the salivary and pancreatic amylases are major digestive enzymes.
Storage instructionsStore at -20°C. Please refer to protocols.
Components Identifier 100 tests Amylase Assay Buffer NM 1 x 55ml Amylase Positive Control Red 1 vial Amylase Substrate Mix NM 1 x 5ml Nitrophenol standard Yellow 1 x 150µl
RelevanceAmylases are enzymes that break starch down to sugar molecules. Alpha-amylase is the major form of amylase found in humans and other mammals as well as an enzyme present in seeds, or in fungi (baker’s yeast for instance). Alpha-amylase is a calcium metalloenzyme, completely unable to function in the absence of calcium. In human physiology, both the salivary and pancreatic amylases are major digestive enzymes. Increased enzyme levels in humans are associated with salivary trauma; mumps due to inflammation of the salivary glands, pancreatitis and renal failure. A simple, direct and automation-ready procedure for measuring alpha-amylase activity is, therefore, very desirable.
Plasma amylase levels were measured (using ab102523) after 75 days treatment with saline or one of three drugs. ND, normal chow diet; HFD, high fat diet. p≤0.05, *; p≤0.01, **, n = 3–7 mice.
There were no statistically significant changes in plasma amylase activity in mice that were administered with two of the drugs vs mice administered saline. However, administration of the third to animals on normal diet led to a 1.4-fold increase in amylase activity (p≤0.01, n = 3 per group) and a 1.3- fold increase in mice on a high fat diet (p≤0.01, n = 4 per group).
Standard curve: mean of duplicates (+/- SD) with background reads subtracted
Amylase activity measured in biological fluids showing activity (mU) per mL of tested sample. Samples were diluted 2 fold.
Amylase activity measured in tissue lysates showing activity (mU) per mg of extracted protein.
Protein concentration for samples varied from 16 mg/mL to 50 mg/mL. Samples were diluted 2 fold.
ab102523 has been referenced in 26 publications.
- Zhao T et al. Do proinflammatory cytokines play a role in clozapine-associated glycometabolism disorders? Psychopharmacology (Berl) 238:1979-1990 (2021). PubMed: 33774704
- Wang J et al. ROR?t inhibitor SR1001 alleviates acute pancreatitis by suppressing pancreatic IL-17-producing Th17 and ?d-T cells in mice with ceruletide-induced pancreatitis. Basic Clin Pharmacol Toxicol 129:357-368 (2021). PubMed: 34384137
- Hernandez G et al. Pancreatitis is an FGF21-deficient state that is corrected by replacement therapy. Sci Transl Med 12:N/A (2020). PubMed: 31915301
- Itani K et al. Varying starch to fat ratios in pelleted diets: I. Effects on nutrient digestibility and production performance in Eimeria-challenged broiler chickens. Br Poult Sci 61:703-709 (2020). PubMed: 32538137
- Dai E et al. Ferroptotic damage promotes pancreatic tumorigenesis through a TMEM173/STING-dependent DNA sensor pathway. Nat Commun 11:6339 (2020). PubMed: 33311482