Sterols are a subgroup of steroids with a hydroxyl group at the 3-position of the A-ring. [ 14 ] They are amphipathic lipids synthesized from acetyl-coenzyme A via the HMG-CoA reductase pathway. The overall molecule is quite flat.

2021年5月7日 · Sterols | C17H28O | CID 1107 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

2023年9月21日 · Steroids are biologically active compounds that have a core structure composed of four fused rings in a specific configuration: three six-membered rings designated A, B, and C and one five-membered ring D, as Figure \(\PageIndex{1}\) right.

Sterols are isoprenoid-derived compounds essential to the growth and development of eukaryotic organisms. Sterols constitute components of biological membranes and serve as precursors for the biosynthesis of steroid hormones such as brassinosteroids in plants [1,2].

Explore sterol lipids' unique structure, functions, and their crucial roles in human health and disease. This guide covers cholesterol, phytosterols, and ergosterol, detailing their significance in cellular membranes, hormone synthesis, and more.

Sterols have a very different structure from triglycerides and phospholipids. Sterols do not contain fatty acids; instead they are composed of carbon, hydrogen, and oxygen arranged in multi ring structures.

Sterols are a class of lipids that play an important role in the structure and function of cells in living organisms. They are a type of steroid with a specific chemical structure characterized by a hydroxyl group (-OH) attached to a carbon atom of the A ring.

While technically alcohols, sterols are classified by biochemist s as lipid s (fat s in the broader sense of the term). The chemical structure shown (which is analogous to those used in KEGG and MetaCyc) is a generic structure devised to represent a common steroid skeleton.

Sterols are unique among lipids in that they have a multiple-ring structure. The well-known sterol cholesterol is found only in foods of animal origin—meat, egg yolk, fish, poultry, and dairy products.

This review briefly summarizes key researches on the structure of the sterol molecule from its very beginnings to the definitive elucidation in 1932. Cholesterol biosynthesis treated in somewhat greater detail covers the period from the 1930s to the 1960s.