Description
Key facts
Detection method:Colorimetric,
Sample types:Adherent cells, Suspension cells, Tissue,
Assay type:Enzyme activity (quantitative),
Assay Platform:Microplate
Product details:
Glycogen Phosphorylase Assay Kit (Colorimetric) (ab273271) is based on the detection of G1P by a set of enzymatic reactions to generate a colored product with a strong absorbance at 450 nm. The OD 450 nm signal is directly proportional to the glycogen phosphorylase activity. The Glycogen Phosphorylase Colorimetric Assay Kit is rapid, sensitive and convenient tool for detecting glycogen phosphorylase activity. The kit can detect as low as 10 mU in a variety of sample types.
Other Notes
This product was previously called K179 Biovision Glycogen Phosphorylase Colorimetric Assay Kit. Biovision was acquired by Abcam in 2021.
The Safety Datasheet for this product has been updated for certain countries. Please check the current version in the Support and downloads section.
Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions--20°C, Appropriate long-term storage conditions--20°C, Storage information--20°C
Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Glycogen Phosphorylase also known as 'Phosphorylase' is an enzyme that catalyzes the breakdown of glycogen into glucose-1-phosphate. This enzyme exists in different isoforms including muscle liver and brain glycogen phosphorylases. The molecular mass of glycogen phosphorylase is approximately 97 kDa. It typically expresses in tissues that store glycogen such as liver and muscle enabling these tissues to convert stored glycogen into glucose during times of energy demand.
Biological function summary
This protein plays a role in glycogen metabolism by releasing glucose units through the glycogen phosphorylase reaction. It is not part of a complex but functions independently. Glycogen phosphorylase activity increases during fasting or physical exertion providing an accessible source of glucose. This regulation is important for maintaining blood glucose levels especially in liver tissue where glycogen phosphorylase function is essential for homeostasis.
Pathways
Glycogen phosphorylase is integral to glycogenolysis a part of carbohydrate metabolism. It works alongside other enzymes such as glycogen synthase in balancing the breakdown and synthesis of glycogen. In hormonal control pathways glycogen phosphorylase activity is modulated by epinephrine and glucagon which promote its conversion to the active form. Through these pathways phosphorylases exhibit dynamic responses to varying energy needs.
Glycogen phosphorylase is linked to McArdle's disease a glycogen storage disorder resulting from muscle phosphorylase deficiency. This condition causes muscle pain and weakness upon exertion. Another related disorder is Hers disease caused by liver glycogen phosphorylase deficiency resulting in hypoglycemia and hepatomegaly. Both conditions highlight the importance of the glycogen phosphorylase function for normal muscle and liver physiology.
