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Glycogen Assay Kit (ab65620) is an easy and accurate assay to measure glycogen levels in biological samples. In the assay, glucoamylase hydrolyzes the glycogen to glucose which is then specifically oxidized to produce a product that reacts with OxiRed probe to generate color (570 nm) and fluorescence (Ex 535/Em 587). The assay can detect glycogen 0.0004 to 2 mg/ml.
If your sample is likely to contain reducing substances, we recommend using Glycogen Assay Kit II (ab169558), as reducing substances may interfere with the assay detection method.
Visit our FAQs page for tips and troubleshooting.
Review our Metabolism Assay Guide to learn about assays for metabolites, metabolic enzymes, mitochondrial function, and oxidative stress, and also about how to assay metabolic function in live cells using your plate reader.
Glycogen is the primary short term energy storage molecule in animals, synthesized primarily in the liver and muscle. Glycogen is a branched glucose polymer, in alpha-1,4 linkage, with branching via alpha-1,6 linkage. Abnormal ability to utilize glycogen is found in diabetes and in several genetic glycogen storage diseases.
|Development Buffer||WM||1 x 25ml|
|Development Enzyme Mix (lyophilized)||Green||1 vial|
|Glycogen Standard (2.0 mg/ml)||Yellow||1 x 100µl|
|Hydrolysis Buffer||NM||1 x 25ml|
|Hydrolysis Enzyme Mix (lyophilized)||Blue||1 vial|
|OxiRed Probe||Red||1 x 200µl|
Our Abpromise guarantee covers the use of ab65620 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|Functional Studies||Use at an assay dependent dilution.|
Total glycogen levels in C576bL6 mice astrocytes were determined by using Glycogen assay kit (ab65620). At 24 hours following OGD-reoxygenation, astrocytes had less glycogen levels compared to normoxia control. Astrocytes treated with Methylene blue (MB) showed a higher glycogen content compared to non-MB treated, OGD-reoxygenation astrocytes. * p < 0.05; ## p < 0.001 Vs. OGD-reoxygenation control / 0 μM MB.
Example of fluorometric standard curve using Glycogen Assay Kit (ab65620).
Measurement of glycogen in various mouse tissues using Glycogen Assay Kit (ab65620).
Glycogen concentration measured in MBA-MB-231 cells (human breast adenocarcinoma cell line). 106 cells were prepared following protocol instructions, and several dilutions were measured using fluorometric detection.
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