|Cell culture supernatants||96%||72%-121%|
Clusterin (also known as apolipoprotein J) is a 75-80 kDa heterodimeric glycoprotein produced by a wide array of tissues and found in most biologic fluids. It is encoded by one single gene and cleaved posttranslationally into α and β subunits prior to secretion from the cell. Many functions have been described for clusterin, including regulating apoptosis, transporting lipids, controlling cell interactions, regulating complement. Increased plasma clusterin levels have been associated with severity, pathology, and progression in Alzheimer disease.