Glycosylphosphatidylinositol anchored high density lipoprotein binding protein 1 (GPI-HBP1) also known as high density lipoprotein-binding protein 1 is a protein that in humans is encoded by the GPIHBP1 gene.[1]
Function
Dietary fats are packaged by intestine into triglyceride-rich lipoproteins called chylomicrons. The triglycerides in chylomicrons are hydrolyzed by lipoprotein lipase (LPL) along the luminal surface of capillaries, mainly in heart, skeletal muscle, and adipose tissue. GPIHBP1 is a capillary endothelial cell protein that provides a platform for LPL-mediated processing of chylomicrons.[1][2]
Charriere, S.; Peretti, N.; Bernard, S.; Di Filippo, M.; Sassolas, A.; Merlin, M.; Delay, M.; Debard, C.; Lefai, E.; Lachaux, A.; Moulin, P.; Marcais, C. (2011). "GPIHBP1 C89F Neomutation and Hydrophobic C-Terminal Domain G175R Mutation in Two Pedigrees with Severe Hyperchylomicronemia". Journal of Clinical Endocrinology & Metabolism. 96 (10): E1675–E1679. doi:10.1210/jc.2011-1444. PMID21816778.
Ruge, T.; Sukonina, V.; Kroupa, O.; Makoveichuk, E.; Lundgren, M.; Svensson, M. K.; Olivecrona, G.; Eriksson, J. W. (2012). "Effects of hyperinsulinemia on lipoprotein lipase, angiopoietin-like protein 4, and glycosylphosphatidylinositol-anchored high-density lipoprotein binding protein 1 in subjects with and without type 2 diabetes mellitus". Metabolism. 61 (5): 652–660. doi:10.1016/j.metabol.2011.09.014. PMID22078753.