Sterol is an organic compound with formula C 17H 28O, whose molecule is derived from that of gonane by replacement of a hydrogen atom on C3 position by...
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Phytosterol (redirect from Plant sterol)
biological membranes of plants. They encompass plant sterols and stanols. More than 250 sterols and related compounds have been identified. Free phytosterols...
33 KB (3,590 words) - 16:39, 29 June 2024
Sterol esters are a heterogeneous group of chemical compounds. They are created when the hydroxyl group of a sterol and a fatty acid undergo an esterification...
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Steroid (redirect from Sterol biosynthesis)
plants, and animals. All steroids are manufactured in cells from the sterols lanosterol (opisthokonts) or cycloartenol (plants). Lanosterol and cycloartenol...
83 KB (8,473 words) - 15:54, 30 October 2024
The enzyme sterol esterase (EC 3.1.1.13) catalyzes the reaction a sterol ester + H2O ⇌ {\displaystyle \rightleftharpoons } a sterol + a fatty acid This...
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Sterol regulatory element-binding proteins (SREBPs) are transcription factors that bind to the sterol regulatory element DNA sequence TCACNCCAC. Mammalian...
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Δ7-sterol 5(6)-desaturase (EC 1.14.19.20) is an enzyme that catalyzes the chemical reaction Δ7-sterol + 2 ferrocytochrome b5 + O2 + 2 H+ = Δ5,7-sterol +...
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enzymology, a sterol 3beta-glucosyltransferase (EC 2.4.1.173) is an enzyme that catalyzes the chemical reaction UDP-glucose + a sterol ⇌ {\displaystyle...
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Sterol regulatory element-binding transcription factor 1 (SREBF1) also known as sterol regulatory element-binding protein 1 (SREBP-1) is a protein that...
18 KB (2,147 words) - 10:39, 25 July 2024
C-5 sterol desaturase (also known as sterol C-5 desaturase and C5SD) is an enzyme that is highly conserved among eukaryotes and catalyzes the dehydrogenation...
14 KB (1,677 words) - 14:51, 20 April 2023
A sterol-sensing domain (SSD) is a protein domain which consists of 180 amino acids forming five transmembrane segments capable of binding sterol groups...
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CYP27A1 (redirect from Sterol 27-hydroxylase)
is a gene encoding a cytochrome P450 oxidase, and is commonly known as sterol 27-hydroxylase. This enzyme is located in many different tissues where it...
11 KB (1,377 words) - 05:00, 15 December 2023
diacylglycerol-sterol O-acyltransferase (EC 2.3.1.73) is an enzyme that catalyzes the chemical reaction 1,2-diacyl-sn-glycerol + sterol ⇌ {\displaystyle...
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Sterol carrier proteins (also known as nonspecific lipid transfer proteins) is a family of proteins that transfer steroids and probably also phospholipids...
2 KB (195 words) - 18:07, 12 August 2023
Lanosterol 14 alpha-demethylase (redirect from Sterol,NADPH:oxygen oxidoreductase (14-methyl cleaving))
14α-demethylase is responsible for an essential step in the biosynthesis of sterols. In particular, this protein catalyzes the removal of the C-14α-methyl...
10 KB (1,066 words) - 05:53, 15 December 2023
a sterol Chondrillasterol, a sterol Clerosterol, a sterol 7-Dehydrositosterol, a sterol Fucosterol, an algal sterol Isofucosterol, an algal sterol 24-Methylenelophenol...
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β-sitosterol (beta-sitosterol) is one of several phytosterols (plant sterols) with chemical structures similar to that of cholesterol. It is a white,...
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old. In contrast, a molecular clock analysis suggests the emergence of sterol biosynthesis as early as 2.3 billion years ago. The nature of steranes as...
61 KB (6,102 words) - 11:22, 19 October 2024
phosphatidylcholine---sterol O-acyltransferase (EC 2.3.1.43) is an enzyme that catalyzes the chemical reaction phosphatidylcholine + a sterol ⇌ {\displaystyle...
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Sterol regulatory element-binding protein 2 (SREBP-2) also known as sterol regulatory element binding transcription factor 2 (SREBF2) is a protein that...
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In enzymology, a Delta14-sterol reductase (EC 1.3.1.70) is an enzyme that catalyzes the chemical reaction 4,4-dimethyl-5alpha-cholesta-8,24-dien-3beta-ol...
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Sterol O-acyltransferase (also called Acyl-CoA cholesterol acyltransferase, Acyl-CoA cholesterin acyltransferase[citation needed] or simply ACAT) is an...
11 KB (1,219 words) - 15:53, 26 August 2023
In enzymology, a sterol 24-C-methyltransferase (EC 2.1.1.41) is an enzyme that catalyzes the chemical reaction S-adenosyl-L-methionine + 5alpha-cholesta-8...
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Cholesterol (category Sterols)
Cholesterol is the principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils...
80 KB (8,640 words) - 20:17, 27 October 2024
In enzymology, a Delta24(241)-sterol reductase (EC 1.3.1.71) is an enzyme that catalyzes the chemical reaction ergosterol + NADP+ ⇌ {\displaystyle \rightleftharpoons...
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foods supplemented with plant sterol esters reduce cardiovascular events. They are used in food products such as Benecol. Sterol esters can also be used for...
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lipid transfer proteins (LTPs). Concretely, they constitute a family of sterol and phosphoinositide binding and transfer proteins in eukaryotes that are...
21 KB (2,071 words) - 17:05, 29 September 2024
Sterol regulatory element-binding protein cleavage-activating protein, also known as SREBP cleavage-activating protein or SCAP, is a protein that in humans...
10 KB (1,284 words) - 01:51, 11 December 2023
In enzymology, a triacylglycerol---sterol O-acyltransferase (EC 2.3.1.77) is an enzyme that catalyzes the chemical reaction triacylglycerol + a 3beta-hydroxysterol...
2 KB (127 words) - 16:05, 26 August 2023