Lipase Endothelial (Human Recombinant) is produced in HEK (Human Embryonic Kidney) cells. The recombinant form is a single, glycosylated polypeptide chain consisting of 490 amino acids, with a calculated molecular mass of approximately 55.8 kDa . The enzyme is fused to a 2 amino acid N-terminal linker, a 2 amino acid C-terminal linker, and a 6 amino acid His tag at the C-terminus .
LIPG exhibits extensive phospholipase activity and is more active as a phospholipase than as a triglyceride lipase . It hydrolyzes high-density lipoproteins (HDL) more efficiently than other lipoproteins . This enzyme is involved in the hydrolysis of triglycerides, both with short-chain fatty acyl groups (such as tributyrin) and long-chain fatty acyl groups (such as triolein), showing similar levels of activity toward both types of substrates .
The primary role of LIPG in the body is to regulate lipoprotein metabolism and maintain vascular health. By hydrolyzing HDL, LIPG helps in the remodeling and clearance of plasma lipoproteins . This activity is essential for maintaining lipid homeostasis and preventing the accumulation of lipids in the blood vessels, which can lead to cardiovascular diseases .