NCBI Taxonomy: 31469

Gracilariaceae (ncbi_taxid: 31469)

found 26 associated metabolites at family taxonomy rank level.

Ancestor: Gracilariales

Child Taxonomies: Curdiea, Gracilaria, Crassa, Melanthalia, Gracilariopsis, Gracilariophila, Hydropuntia, Agarophyton, Crassiphycus

Hordenine

4-[2-(dimethylamino)ethyl]phenol

C10H15NO (165.115358)


Hordenine is a potent phenylethylamine alkaloid with antibacterial and antibiotic properties produced in nature by several varieties of plants in the family Cactacea. The major source of hordenine in humans is beer brewed from barley. Hordenine in urine interferes with tests for morphine, heroin and other opioid drugs. Hordenine is a biomarker for the consumption of beer Hordenine is a phenethylamine alkaloid. It has a role as a human metabolite and a mouse metabolite. Hordenine is a natural product found in Cereus peruvianus, Mus musculus, and other organisms with data available. See also: Selenicereus grandiflorus stem (part of). Alkaloid from Hordeum vulgare (barley) CONFIDENCE Reference Standard (Level 1); INTERNAL_ID 2289 Hordenine, an alkaloid found in plants, inhibits melanogenesis by suppression of cyclic adenosine monophosphate (cAMP) production[1]. Hordenine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=539-15-1 (retrieved 2024-10-24) (CAS RN: 539-15-1). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

   

Cholesterol

(1S,2R,5S,10S,11S,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-5-ol

C27H46O (386.3548466)


Cholesterol is a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues and transported in the blood plasma of all animals. The name originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol. This is because researchers first identified cholesterol in solid form in gallstones in 1784. In the body, cholesterol can exist in either the free form or as an ester with a single fatty acid (of 10-20 carbons in length) covalently attached to the hydroxyl group at position 3 of the cholesterol ring. Due to the mechanism of synthesis, plasma cholesterol esters tend to contain relatively high proportions of polyunsaturated fatty acids. Most of the cholesterol consumed as a dietary lipid exists as cholesterol esters. Cholesterol esters have a lower solubility in water than cholesterol and are more hydrophobic. They are hydrolyzed by the pancreatic enzyme cholesterol esterase to produce cholesterol and free fatty acids. Cholesterol has vital structural roles in membranes and in lipid metabolism in general. It is a biosynthetic precursor of bile acids, vitamin D, and steroid hormones (glucocorticoids, estrogens, progesterones, androgens and aldosterone). In addition, it contributes to the development and functioning of the central nervous system, and it has major functions in signal transduction and sperm development. Cholesterol is a ubiquitous component of all animal tissues where much of it is located in the membranes, although it is not evenly distributed. The highest proportion of unesterified cholesterol is in the plasma membrane (roughly 30-50\\\\% of the lipid in the membrane or 60-80\\\\% of the cholesterol in the cell), while mitochondria and the endoplasmic reticulum have very low cholesterol contents. Cholesterol is also enriched in early and recycling endosomes, but not in late endosomes. The brain contains more cholesterol than any other organ where it comprises roughly a quarter of the total free cholesterol in the human body. Of all the organic constituents of blood, only glucose is present in a higher molar concentration than cholesterol. Cholesterol esters appear to be the preferred form for transport in plasma and as a biologically inert storage (de-toxified) form. They do not contribute to membranes but are packed into intracellular lipid particles. Cholesterol molecules (i.e. cholesterol esters) are transported throughout the body via lipoprotein particles. The largest lipoproteins, which primarily transport fats from the intestinal mucosa to the liver, are called chylomicrons. They carry mostly triglyceride fats and cholesterol that are from food, especially internal cholesterol secreted by the liver into the bile. In the liver, chylomicron particles give up triglycerides and some cholesterol. They are then converted into low-density lipoprotein (LDL) particles, which carry triglycerides and cholesterol on to other body cells. In healthy individuals, the LDL particles are large and relatively few in number. In contrast, large numbers of small LDL particles are strongly associated with promoting atheromatous disease within the arteries. (Lack of information on LDL particle number and size is one of the major problems of conventional lipid tests.). In conditions with elevated concentrations of oxidized LDL particles, especially small LDL particles, cholesterol promotes atheroma plaque deposits in the walls of arteries, a condition known as atherosclerosis, which is a major contributor to coronary heart disease and other forms of cardiovascular disease. There is a worldwide trend to believe that lower total cholesterol levels tend to correlate with lower atherosclerosis event rates (though some studies refute this idea). As a result, cholesterol has become a very large focus for the scientific community trying to determine the proper amount of cholesterol needed in a healthy diet. However, the primary association of atherosclerosis with c... Constituent either free or as esters, of fish liver oils, lard, dairy fats, egg yolk and bran Cholesterol is the major sterol in mammals. It is making up 20-25\\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3]. Cholesterol is the major sterol in mammals. It is making up 20-25\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3].

   

15-Keto-prostaglandin E2

(5Z)-7-[(1R,2R,3R)-3-hydroxy-5-oxo-2-[(1E)-3-oxooct-1-en-1-yl]cyclopentyl]hept-5-enoic acid

C20H30O5 (350.209313)


15-keto-PGE2 is one of the prostaglandin E2 metabolites. (PMID 7190512). It is a degradation product produced by 15-hydroxy prostaglandin dehydrogenase (PGDH or 15-PGDH). Dinoprostone is a naturally occurring prostaglandin E2 (PGE2) and the most common and most biologically active of the mammalian prostaglandins. It has important effects in labour and also stimulates osteoblasts to release factors which stimulate bone resorption by osteoclasts (a type of bone cell that removes bone tissue by removing the bones mineralized matrix). PGE2 has been shown to increase vasodilation and cAMP production, to enhance the effects of bradykinin and histamine, to induce uterine contractions and to activate platelet aggregation. PGE2 is also responsible for maintaining the open passageway of the fetal ductus arteriosus; decreasing T-cell proliferation and lymphocyte migration and activating the secretion of IL-1alpha and IL-2. PGE2 exhibits both pro- and anti-inflammatory effects, particularly on dendritic cells (DC). Depending on the nature of maturation signals, PGE2 has different and sometimes opposite effects on DC biology. PGE2 exerts an inhibitory action, reducing the maturation of DC and their ability to present antigen. PGE2 has also been shown to stimulate DC and promote IL-12 production when given in combination with TNF-alpha. PGE2 is an environmentally bioactive substance. Its action is prolonged and sustained by other factors especially IL-10. It modulates the activities of professional DC by acting on their differentiation, maturation and their ability to secrete cytokines. PGE2 is a potent inducer of IL-10 in bone marrow-derived DC (BM-DC), and PGE2-induced IL-10 is a key regulator of the BM-DC pro-inflammatory phenotype. (PMID: 16978535). Prostaglandins are eicosanoids. The eicosanoids consist of the prostaglandins (PGs), thromboxanes (TXs), leukotrienes (LTs), and lipoxins (LXs). The PGs and TXs are collectively identified as prostanoids. Prostaglandins were originally shown to be synthesized in the prostate gland, thromboxanes from platelets (thrombocytes), and leukotrienes from leukocytes, hence the derivation of their names. All mammalian cells except erythrocytes synthesize eicosanoids. These molecules are extremely potent, able to cause profound physiological effects at very dilute concentrations. All eicosanoids function locally at the site of synthesis, through receptor-mediated G-protein linked signalling pathways. 15-keto-PGE2 is one of the prostaglandin E2 metabolites. (PMID 7190512). It is a degradation product produced by 15-hydroxy prostaglandin dehydrogenase (PGDH or 15-PGDH)

   

Debromoaplysiatoxin

Aplysiatoxin, 17-debromo-

C32H48O10 (592.3247308)


A member of the class of aplysiatoxins that has the structure of the parent aplysiatoxin, but is lacking the bromo substituent on the benzene ring at the position para to the phenolic hydroxy group. It is a cyanotoxin produced by several species of freshwater and marine cyanobacteria, as well as algae and molluscs. D009676 - Noxae > D011042 - Poisons > D008235 - Lyngbya Toxins D009676 - Noxae > D011042 - Poisons > D008387 - Marine Toxins D009676 - Noxae > D002273 - Carcinogens

   

24-Methylenecholesterol

(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methyl-5-methylideneheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

C28H46O (398.3548466)


24-Methylenecholesterol, also known as chalinasterol or ostreasterol, belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton. Thus, 24-methylenecholesterol is considered to be a sterol lipid molecule. 24-Methylenecholesterol is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. 24-Methylenecholesterol is involved in the biosynthesis of steroids. 24-Methylenecholesterol is converted from 5-dehydroepisterol by 7-dehydrocholesterol reductase (EC 1.3.1.21). 24-Methylenecholesterol is converted into campesterol by delta24-sterol reductase (EC 1.3.1.72). 24-methylenecholesterol is a 3beta-sterol having the structure of cholesterol with a methylene group at C-24. It has a role as a mouse metabolite. It is a 3beta-sterol and a 3beta-hydroxy-Delta(5)-steroid. It is functionally related to a cholesterol. 24-Methylenecholesterol is a natural product found in Echinometra lucunter, Ulva fasciata, and other organisms with data available. A 3beta-sterol having the structure of cholesterol with a methylene group at C-24. Constituent of clams and oysters 24-Methylenecholesterol (Ostreasterol), a natural marine sterol, stimulates cholesterol acyltransferase in human macrophages. 24-Methylenecholesterol possess anti-aging effects in yeast. 24-methylenecholesterol enhances honey bee longevity and improves nurse bee physiology[1][2][3].

   

Clionasterol

24beta-Ethyl-5-cholesten-3beta-ol

C29H50O (414.386145)


Clionasterol is a triterpenoid isolated from the Indian marine red alga Gracilaria edulis, the sponge Veronica aerophoba and the Kenyan Marine Green. Macroalga Halimeda macroloba. It is a potent inhibitor of complement component C1. (PMID 12624828). D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents D009676 - Noxae > D000963 - Antimetabolites

   
   

Cholesterol

(1S,2R,5S,10S,11S,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-5-ol

C27H46O (386.3548466)


A cholestanoid consisting of cholestane having a double bond at the 5,6-position as well as a 3beta-hydroxy group. Disclaimer: While authors make an effort to ensure that the content of this record is accurate, the authors make no representations or warranties in relation to the accuracy or completeness of the record. This record do not reflect any viewpoints of the affiliation and organization to which the authors belong. Cholesterol is the major sterol in mammals. It is making up 20-25\\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3]. Cholesterol is the major sterol in mammals. It is making up 20-25\% of structural component of the plasma membrane. Plasma membranes are highly permeable to water but relatively impermeable to ions and protons. Cholesterol plays an important role in determining the fluidity and permeability characteristics of the membrane as well as the function of both the transporters and signaling proteins[1][2]. Cholesterol is also an endogenous estrogen-related receptor α (ERRα) agonist[3].

   

Hordenine

N,N-Dimethyl-2-(4-hydroxyphenyl)ethylamine

C10H15NO (165.115358)


Annotation level-1 Hordenine, an alkaloid found in plants, inhibits melanogenesis by suppression of cyclic adenosine monophosphate (cAMP) production[1]. Hordenine, an alkaloid found in plants, inhibits melanogenesis by suppression of cyclic adenosine monophosphate (cAMP) production[1].

   

clionasterol

(3beta,24S)-stigmast-5-en-3-ol

C29H50O (414.386145)


A member of the class of phytosterols that is poriferast-5-ene carrying a beta-hydroxy substituent at position 3. D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents D009676 - Noxae > D000963 - Antimetabolites

   

1,3,3-trimethyl-2-[(9e,11e,13e,15e,17e)-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohex-1-en-1-yl)octadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]cyclohex-1-ene

1,3,3-trimethyl-2-[(9e,11e,13e,15e,17e)-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohex-1-en-1-yl)octadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl]cyclohex-1-ene

C40H56 (536.4381776)


   

1-{13-hydroxy-3-[5-(3-hydroxyphenyl)-5-methoxypentan-2-yl]-4,14,16,16-tetramethyl-7,11-dioxo-2,6,10,17-tetraoxatricyclo[11.3.1.1¹,⁵]octadecan-9-yl}ethyl acetate

1-{13-hydroxy-3-[5-(3-hydroxyphenyl)-5-methoxypentan-2-yl]-4,14,16,16-tetramethyl-7,11-dioxo-2,6,10,17-tetraoxatricyclo[11.3.1.1¹,⁵]octadecan-9-yl}ethyl acetate

C34H50O11 (634.335295)


   

methyl (6z,8e,10s,12z,15z)-10-(acetyloxy)octadeca-6,8,12,15-tetraenoate

methyl (6z,8e,10s,12z,15z)-10-(acetyloxy)octadeca-6,8,12,15-tetraenoate

C21H32O4 (348.2300472)


   

(2s,3r,4s,5r,6r)-2-{[(1s,3s,4s,5s,8r)-3-{[(2s,3r,4r,5s,6r)-2-{[(1s,3r,4s,5s,8r)-3,4-dihydroxy-2,6-dioxabicyclo[3.2.1]octan-8-yl]oxy}-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy}-4-hydroxy-2,6-dioxabicyclo[3.2.1]octan-8-yl]oxy}-6-(hydroxymethyl)oxane-3,4,5-triol

(2s,3r,4s,5r,6r)-2-{[(1s,3s,4s,5s,8r)-3-{[(2s,3r,4r,5s,6r)-2-{[(1s,3r,4s,5s,8r)-3,4-dihydroxy-2,6-dioxabicyclo[3.2.1]octan-8-yl]oxy}-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy}-4-hydroxy-2,6-dioxabicyclo[3.2.1]octan-8-yl]oxy}-6-(hydroxymethyl)oxane-3,4,5-triol

C24H38O19 (630.2007198)


   

3-[(5-{[6-carboxy-4,5-dihydroxy-3-(sulfooxy)oxan-2-yl]oxy}-6-(hydroxymethyl)-3-(sulfoamino)-4-(sulfooxy)oxan-2-yl)oxy]-6-({4,6-dihydroxy-5-[(1-hydroxyethylidene)amino]-2-[(sulfooxy)methyl]oxan-3-yl}oxy)-4-hydroxy-5-(sulfooxy)oxane-2-carboxylic acid

3-[(5-{[6-carboxy-4,5-dihydroxy-3-(sulfooxy)oxan-2-yl]oxy}-6-(hydroxymethyl)-3-(sulfoamino)-4-(sulfooxy)oxan-2-yl)oxy]-6-({4,6-dihydroxy-5-[(1-hydroxyethylidene)amino]-2-[(sulfooxy)methyl]oxan-3-yl}oxy)-4-hydroxy-5-(sulfooxy)oxane-2-carboxylic acid

C26H42N2O37S5 (1134.0069962000002)


   

(2z)-2-hydroxy-3-[4-(sulfooxy)phenyl]prop-2-enoic acid

(2z)-2-hydroxy-3-[4-(sulfooxy)phenyl]prop-2-enoic acid

C9H8O7S (259.9990738)


   

(4e)-1-[(2s)-2,3-dihydroxypropoxy]hexadec-4-en-6-one

(4e)-1-[(2s)-2,3-dihydroxypropoxy]hexadec-4-en-6-one

C19H36O4 (328.2613456)


   

n-(3-chloro-2-{3-methyl-2-oxo-7-oxabicyclo[4.1.0]hept-3-en-1-yl}prop-2-en-1-yl)-7-methoxy-n-methyltetradec-4-enamide

n-(3-chloro-2-{3-methyl-2-oxo-7-oxabicyclo[4.1.0]hept-3-en-1-yl}prop-2-en-1-yl)-7-methoxy-n-methyltetradec-4-enamide

C26H40ClNO4 (465.2645710000001)


   

(1r,3as,3bs,7s,9ar,9bs,11ar)-9a,11a-dimethyl-1-[(2r)-6-methyl-5-methylideneheptan-2-yl]-1h,2h,3h,3ah,3bh,4h,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-7-yl nonadecanoate

(1r,3as,3bs,7s,9ar,9bs,11ar)-9a,11a-dimethyl-1-[(2r)-6-methyl-5-methylideneheptan-2-yl]-1h,2h,3h,3ah,3bh,4h,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-7-yl nonadecanoate

C47H82O2 (678.6314472)


   

3-[5-(4-chloro-3-hydroxyphenyl)-5-methoxypentan-2-yl]-13-hydroxy-9-(1-hydroxyethyl)-4,14,16,16-tetramethyl-2,6,10,17-tetraoxatricyclo[11.3.1.1¹,⁵]octadecane-7,11-dione

3-[5-(4-chloro-3-hydroxyphenyl)-5-methoxypentan-2-yl]-13-hydroxy-9-(1-hydroxyethyl)-4,14,16,16-tetramethyl-2,6,10,17-tetraoxatricyclo[11.3.1.1¹,⁵]octadecane-7,11-dione

C32H47ClO10 (626.2857592)


   

1-(5-ethyl-6-methylheptan-2-yl)-9a,11a-dimethyl-tetradecahydrocyclopenta[a]phenanthrene-5a,7-diol

1-(5-ethyl-6-methylheptan-2-yl)-9a,11a-dimethyl-tetradecahydrocyclopenta[a]phenanthrene-5a,7-diol

C29H52O2 (432.3967092)


   

(2r)-n-[(2s,3s,4r,6z)-11-[(1s,2s)-2-butylcyclopropyl]-3,4-dihydroxy-1-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}undec-6-en-2-yl]-2-hydroxypentacosanimidic acid

(2r)-n-[(2s,3s,4r,6z)-11-[(1s,2s)-2-butylcyclopropyl]-3,4-dihydroxy-1-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}undec-6-en-2-yl]-2-hydroxypentacosanimidic acid

C49H93NO10 (855.6799118)


   

ethoxy((2r)-3-(hexadecanoyloxy)-2-[(9z)-octadec-9-enoyloxy]propoxy)phosphinic acid

ethoxy((2r)-3-(hexadecanoyloxy)-2-[(9z)-octadec-9-enoyloxy]propoxy)phosphinic acid

C39H75O8P (702.519928)


   

(2r)-n-[(2s,3s,4r,6e)-11-[(1s,2s)-2-butylcyclopropyl]-3,4-dihydroxy-1-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}undec-6-en-2-yl]-2-hydroxypentacosanimidic acid

(2r)-n-[(2s,3s,4r,6e)-11-[(1s,2s)-2-butylcyclopropyl]-3,4-dihydroxy-1-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}undec-6-en-2-yl]-2-hydroxypentacosanimidic acid

C49H93NO10 (855.6799118)


   
   

n-(3,4-dihydroxy-1-{[hydroxy((2,3,4,5,6-pentahydroxycyclohexyl)oxy)phosphoryl]oxy}octadecan-2-yl)octadecanimidic acid

n-(3,4-dihydroxy-1-{[hydroxy((2,3,4,5,6-pentahydroxycyclohexyl)oxy)phosphoryl]oxy}octadecan-2-yl)octadecanimidic acid

C42H84NO12P (825.5730834)