Search results
Results From The WOW.Com Content Network
Hepcidin, a peptide hormone that regulates iron homeostasis. Insulin-like growth factor 1, a polypeptide protein hormone which plays an important role in childhood growth and continues to have anabolic effects in adults; Thrombopoietin, a glycoprotein hormone that regulates the production of platelets by the bone marrow
These modifications produce 8 core structures known to date. [2] Different cells have different enzymes that can add further sugars, known as glycosyltransferases, and structures therefore change from cell to cell. [6] Common sugars added include galactose, N-acetylglucosamine, fucose and sialic acid. These sugars can also be modified by the ...
A neuropeptide is a peptide that is active in association with neural tissue. A lipopeptide is a peptide that has a lipid connected to it, and pepducins are lipopeptides that interact with GPCRs. A peptide hormone is a peptide that acts as a hormone. A proteose is a mixture of peptides produced by the hydrolysis of proteins. The term is ...
All seven relaxin family peptide hormones are synthesized as pre-prohormones, and subsequently cleaved to form two chains stabilized by an intra-α-chain and two disulfide bonds. [5] Members of the human relaxin peptide family share a similar tertiary structure, composed of a β-chain, c-chain, and α-chain at their carboxyl-terminal.
Glycogen is a long-term store of glucose produced by the cells of the liver. In the liver , the synthesis of glycogen is directly correlated with blood glucose concentration. High blood glucose concentration causes an increase in intracellular levels of glucose 6-phosphate in the liver, skeletal muscle , and fat ( adipose ) tissue.
When phosphatidylethanolamine is not present, the transport proteins have incorrect tertiary structures and do not function correctly. [9] Phosphatidylethanolamine also enables bacterial multidrug transporters to function properly and allows the formation of intermediates that are needed for the transporters to properly open and close. [10]
A peptide bond forms between the amino acid attached to the tRNA in the P site and the amino acid attached to a tRNA in the A site. The formation of a peptide bond requires an input of energy. The two reacting molecules are the alpha amino group of one amino acid and the alpha carboxyl group of the other amino acids.
While the mouse liver almost exclusively expresses PEPCK-C, humans equally present a mitochondrial isozyme (PEPCK-M). PEPCK-M has gluconeogenic potential per se. [ 2 ] Therefore, the role of PEPCK-C and PEPCK-M in gluconeogenesis may be more complex and involve more factors than was previously believed.