Aliquot and store for 1 year at -20 deg C, avoid freeze/thaw cycles
General Information
Biological Significance
alpha-1-B glycoprotein (A1BG) which is a plasma protein with no known function belongs to the immunoglobulin superfamily. Although the human A1BG has been known for four decades, and the information about the amino acid sequence, chromosomal assignment, and even genetic polymorphism in different populations have been known, no biological function has been suggested. A1BG (Mr approximately equal to 63,000) consists of one polypeptide chain of 474 amino acids with four glucosamine oligosaccharides. The polypeptide has five intrachain disulfide bonds and consists of five repeating structural domains, each containing about 95 amino acids and one disulfide bond.