| molecular function |
|---|
| | GO:0005504 | | fatty acid binding | | Interacting selectively and non-covalently with fatty acids, aliphatic monocarboxylic acids liberated from naturally occurring fats and oils by hydrolysis. |
| | GO:0055102 | | lipase inhibitor activity | | Stops, prevents or reduces the activity of a lipase, an enzyme that catalyzes of the hydrolysis of a lipid. |
| | GO:0031210 | | phosphatidylcholine binding | | Interacting selectively and non-covalently with phosphatidylcholine, a class of glycophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of choline. |
| | GO:0060228 | | phosphatidylcholine-sterol O-acyltransferase activator activity | | Increases the activity of phosphatidylcholine-sterol O-acyltransferase, an enzyme that converts cholesterol and phosphatidylcholine (lecithins) to cholesteryl esters and lyso-phosphatidylcholines. |
| | GO:0004859 | | phospholipase inhibitor activity | | Stops, prevents or reduces the activity of a phospholipase, an enzyme that catalyzes of the hydrolysis of a phospholipid. |
| biological process |
|---|
| | GO:0033344 | | cholesterol efflux | | The directed movement of cholesterol, cholest-5-en-3-beta-ol, out of a cell or organelle. |
| | GO:0008203 | | cholesterol metabolic process | | The chemical reactions and pathways involving cholesterol, cholest-5-en-3 beta-ol, the principal sterol of vertebrates and the precursor of many steroids, including bile acids and steroid hormones. It is a component of the plasma membrane lipid bilayer and of plasma lipoproteins and can be found in all animal tissues. |
| | GO:0034382 | | chylomicron remnant clearance | | The process in which a chylomicron remnant is removed from the blood via receptor-mediated endocytosis into liver cells and its constituent parts degraded. |
| | GO:0034375 | | high-density lipoprotein particle remodeling | | The acquisition, loss or modification of a protein or lipid within a high-density lipoprotein particle, including the hydrolysis of triglyceride by hepatic lipase, with the subsequent loss of free fatty acid, and the transfer of cholesterol esters from LDL to a triglyceride-rich lipoprotein particle by cholesteryl ester transfer protein (CETP), with the simultaneous transfer of triglyceride to LDL. |
| | GO:0006629 | | lipid metabolic process | | The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids. |
| | GO:0006869 | | lipid transport | | The directed movement of lipids into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Lipids are compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. |
| | GO:0042157 | | lipoprotein metabolic process | | The chemical reactions and pathways involving any conjugated, water-soluble protein in which the covalently attached nonprotein group consists of a lipid or lipids. |
| | GO:0032375 | | negative regulation of cholesterol transport | | Any process that stops, prevents, or reduces the frequency, rate or extent of the directed movement of cholesterol into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. |
| | GO:0045717 | | negative regulation of fatty acid biosynthetic process | | Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of fatty acids. |
| | GO:0050995 | | negative regulation of lipid catabolic process | | Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the breakdown of lipids. |
| | GO:0045833 | | negative regulation of lipid metabolic process | | Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways involving lipids. |
| | GO:0051005 | | negative regulation of lipoprotein lipase activity | | Any process that stops or reduces the activity of the enzyme lipoprotein lipase. |
| | GO:0010900 | | negative regulation of phosphatidylcholine catabolic process | | Any process that decreases the rate, frequency or extent of phosphatidylcholine catabolism. Phosphatidylcholine catabolic processes are the chemical reactions and pathways resulting in the breakdown of phosphatidylcholines, any of a class of glycerophospholipids in which the phosphatidyl group is esterified to the hydroxyl group of choline. |
| | GO:0048261 | | negative regulation of receptor-mediated endocytosis | | Any process that stops, prevents, or reduces the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport. |
| | GO:0010916 | | negative regulation of very-low-density lipoprotein particle clearance | | Any process that decreases the rate, frequency or extent of very-low-density lipoprotein particle clearance. Very-low-density lipoprotein particle clearance is the process in which a very-low-density lipoprotein particle is removed from the blood via receptor-mediated endocytosis and its constituent parts degraded. |
| | GO:0033700 | | phospholipid efflux | | The directed movement of a phospholipid out of a cell or organelle. |
| | GO:0034369 | | plasma lipoprotein particle remodeling | | The acquisition, loss or modification of a protein or lipid within a plasma lipoprotein particle, including the hydrolysis of triglyceride by hepatic lipase, with the subsequent loss of free fatty acid, and the esterification of cholesterol by phosphatidylcholine-sterol O-acyltransferase (lecithin cholesterol acyltransferase; LCAT). |
| | GO:0043085 | | positive regulation of catalytic activity | | Any process that activates or increases the activity of an enzyme. |
| | GO:0010873 | | positive regulation of cholesterol esterification | | Any process that increases the frequency, rate or extent of cholesterol esterification. Cholesterol esterification is the lipid modification process in which a sterol ester is formed by the combination of a carboxylic acid (often a fatty acid) and cholesterol. In the blood this process is associated with the conversion of free cholesterol into cholesteryl ester, which is then sequestered into the core of a lipoprotein particle. |
| | GO:0032374 | | regulation of cholesterol transport | | Any process that modulates the frequency, rate or extent of the directed movement of cholesterol into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. |
| | GO:0006810 | | transport | | The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein. |
| | GO:0006641 | | triglyceride metabolic process | | The chemical reactions and pathways involving triglyceride, any triester of glycerol. The three fatty acid residues may all be the same or differ in any permutation. Triglycerides are important components of plant oils, animal fats and animal plasma lipoproteins. |
| | GO:0034379 | | very-low-density lipoprotein particle assembly | | The non-covalent aggregation and arrangement of proteins and lipids in the liver to form a very-low-density lipoprotein particle. |
| | GO:0034447 | | very-low-density lipoprotein particle clearance | | The process in which a very-low-density lipoprotein particle is removed from the blood via receptor-mediated endocytosis and its constituent parts degraded. |
| cellular component |
|---|
| | GO:0042627 | | chylomicron | | A large lipoprotein particle (diameter 75-1200 nm) composed of a central core of triglycerides and cholesterol surrounded by a protein-phospholipid coating. The proteins include one molecule of apolipoprotein B-48 and may include a variety of apolipoproteins, including APOAs, APOCs and APOE. Chylomicrons are found in blood or lymph and carry lipids from the intestines into other body tissues. |
| | GO:0005783 | | endoplasmic reticulum | | The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached). |
| | GO:0070062 | | extracellular exosome | | A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm. |
| | GO:0005576 | | extracellular region | | The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite. |
| | GO:0034364 | | high-density lipoprotein particle | | A lipoprotein particle with a high density (typically 1.063-1.21 g/ml) and a diameter of 5-10 nm that contains APOAs and may contain APOCs and APOE; found in blood and carries lipids from body tissues to the liver as part of the reverse cholesterol transport process. |
| | GO:0034361 | | very-low-density lipoprotein particle | | A triglyceride-rich lipoprotein particle that is typically composed of APOB100, APOE and APOCs and has a density of about 1.006 g/ml and a diameter of between 20-80 nm. It is found in blood and transports endogenous products (newly synthesized cholesterol and triglycerides) from the liver. |
Description
