Is phosphatidylcholine a membrane lipid?

Phosphatidylcholines are generally the most abundant phospholipid class in a membrane. They also constitute the major phospholipid class contained in lipoproteins, biliary lipid aggregates and lung surfactant.

Is phosphatidylcholine a glycolipid?

Staining of these components revealed two glycolipids and two phospholipids. The glycolipids represented about 50\% of the total lipids and comprised only galactose as monosaccharide constituents. The phospholipids were identified as phosphatidylcholine and phosphatidylglycerol.

Is phosphatidylcholine a sphingolipid?

Sphingomyelin is often classified and reported as a phospholipid but it is also a sphingolipid. Like phosphatidylcholine (lecithin), it contains a choline moiety and a phosphodiester linkage, but in contrast to phosphatidylcholine which is a glycerolipid, the backbone (lipid moiety) of sphingomyelin is a ceramide.

What is phosphatidylcholine also known as?

The term “phosphatidylcholine” is sometimes used interchangeably with “lecithin,” although the two are different. Choline is a component of phosphatidylcholine, which is a component of lecithin.

Is phosphatidylcholine a polymer?

In the field of interventional cardiology, phosphorylcholine is used as a synthetic polymer-based coating, applied to drug-eluting stents, to prevent the occurrence of coronary artery restenosis.

What fatty acids are in phosphatidylcholine?

Usually, one is a saturated fatty acid (in the given figure, this is palmitic acid (hexadecanoic acid, H3C-(CH2)14-COOH); margaric acid (heptadecanoic acid, H3C-(CH2)15-COOH), identified by Gobley in egg yolk, also belong to that class); and the other is an unsaturated fatty acid (here oleic acid, or 9Z-octadecenoic …

Is glycerol a membrane lipid?

Phospholipids and glycolipids consist of two long, nonpolar (hydrophobic) hydrocarbon chains linked to a hydrophilic head group. The heads of phospholipids are phosphorylated and they consist of either: Glycerol (and hence the name phosphoglycerides given to this group of lipids), or.

Is sphingosine a lipid?

Sphingosine (2-amino-4-trans-octadecene-1,3-diol) is an 18-carbon amino alcohol with an unsaturated hydrocarbon chain, which forms a primary part of sphingolipids, a class of cell membrane lipids that include sphingomyelin, an important phospholipid.

Is phosphatidylcholine the same as lecithin?

Phosphatidylcholine is a major component of lecithin, a yellow-brown fatty substance found in egg yolk, organ meats, nuts, and spinach. Although lecithin contains substances other than phosphatidylcholine, the terms are sometimes used interchangeably in medical literature.

What type of lipid is cardiolipin?

phospholipid
Cardiolipin (CL) is a phospholipid, which is exclusively located in mitochondria, and has a unique structure that consists of 2 phosphate residues and 4 kinds of fatty acyl chains.

What lipids are present in the plasma membrane?

phospholipids
The most abundant membrane lipids are the phospholipids. These have a polar head group and two hydrophobic hydrocarbon tails. The tails are usually fatty acids, and they can differ in length (they normally contain between 14 and 24 carbon atoms).