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Perilipin 2/Adipophilin/ADRP/PLIN2 is a ubiquitous component of lipid droplets. It has been found in milk fat globule membranes and on the surface of lipid droplets in various cultured cell lines; inducible by etomoxir. Enhanced expression of Perilipin 2/Adipophilin/ADRP/PLIN2 is a useful marker for pathologies characterized by increased lipid droplet accumulation. Such diseases include atheroma, steatosis, obesity and certain cases of liposarcoma. It also seems to be a potent marker for atherosclerosis. ADRP can also be used to study virus entry via lipid droplets. Polypeptide reacting: Perilipin 2/Adipophilin/ADRP/PLIN2, MW 48,100 (calculated from aa sequence data); apparent MW 52,000 (after SDS-PAGE); pI 6.72.
Milk lipid globules from humans, cows and rats contain a protein identified as adipocyte differentiation-related protein (ADFP). It is associated with the globule surface membrane material. This protein, previously believed to be specific to adipocytes, is a major constituent of the globule surface and is present in a detergent-insoluble complex that contains butyrophilin and xanthine oxidase. ADFP (Adipophilin) is found in a wide range of cultured cell lines, including fibroblasts, endothelial and epithelial cells. In tissues, however, expression of adipophilin is restricted to specific cell types, such as lactating mammary epithelial cells, adrenal cortex cells, Sertoli and Leydig cells of the male reproductive system, and steatosis or fatty change hepatocytes in alcoholic liver cirrhosis. ADFP may be a possible new marker for the identification of specialized differentiated cells containing lipid droplets and for diseases associated with fat-accumulating cells.
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蛋白别名: Adipophilin; adipose differentiation related protein; Adipose differentiation-related protein; ADRP; ADRP antibody; MGC10598; Perilipin-2
基因别名: ADFP; ADRP; PLIN2
UniProt ID: (Human) Q99541
Entrez Gene ID: (Dog) 100856329, (Human) 123, (Rat) 298199