Insulin Insulin Insulin (from Latin "insula", island) is a peptide hormone produced by beta cells of the pancreatic islets; it is considered to be the main anabolic hormone of the body. It regulates the metabolism of carbohydrates, fats and protein by promoting the absorption of carbohydrates, especially glucose from the blood into liver, fat and skeletal muscle cells. In these tissues the absorbed glucose is converted into either glycogen via glycogenesis or fats (triglycerides) via lipogenesis, or, in the case of the liver, into both. Glucose production and secretion by the liver is strongly inhibited by high concentrations of insulin in
Glycogenin-1 Glycogenin-1 Glycogenin-1 is an enzyme that is involved in the biosynthesis of glycogen. This enzyme is important for the function of self-glucosylated to form an oligosaccharide primer that serves as substrate for glycogen synthase. This is done through an inter-subunit mechanism. It also plays a role in glycogen metabolism regulation and in the maximal glycogen levels attaintment in skeletal muscle. Recombinant human glycogenin-1 was expressed in "E. coli" and purified by using conventional chromatography techniques. Glycogen is a multi branched polysaccharide. It is the way all the animal cells have to store glucose. In the human body, the two main