NCBI Taxonomy: 267567

Skeletonema marinoi (ncbi_taxid: 267567)

found 18 associated metabolites at species taxonomy rank level.

Ancestor: Skeletonema marinoi-dohrnii complex

Child Taxonomies: none taxonomy data.

Linoleic acid

C18:2 9C, 12C Omega6 todos cis-9,12-octadienoico

C18H32O2 (280.2402172)


Linoleic acid is a doubly unsaturated fatty acid, also known as an omega-6 fatty acid, occurring widely in plant glycosides. In this particular polyunsaturated fatty acid (PUFA), the first double bond is located between the sixth and seventh carbon atom from the methyl end of the fatty acid (n-6). Linoleic acid is an essential fatty acid in human nutrition because it cannot be synthesized by humans. It is used in the biosynthesis of prostaglandins (via arachidonic acid) and cell membranes (From Stedman, 26th ed). Linoleic acid is found to be associated with isovaleric acidemia, which is an inborn error of metabolism. Linoleic acid (LA) is an organic compound with the formula HOOC(CH2)7CH=CHCH2CH=CH(CH2)4CH3. Both alkene groups (−CH=CH−) are cis. It is a fatty acid sometimes denoted 18:2 (n-6) or 18:2 cis-9,12. A linoleate is a salt or ester of this acid.[5] Linoleic acid is a polyunsaturated, omega-6 fatty acid. It is a colorless liquid that is virtually insoluble in water but soluble in many organic solvents.[2] It typically occurs in nature as a triglyceride (ester of glycerin) rather than as a free fatty acid.[6] It is one of two essential fatty acids for humans, who must obtain it through their diet,[7] and the most essential, because the body uses it as a base to make the others. The word "linoleic" derives from Latin linum 'flax', and oleum 'oil', reflecting the fact that it was first isolated from linseed oil.

   

Bovinic acid

9-cis,11-trans-Octadecadienoic acid solution

C18H32O2 (280.2402172)


Bovinic acid is a conjugated linoleic acid, present in human adipose tissue; the amount of bovinic acid in humans is significantly related to milk fat intake. Conjugated linoleic acids (CLAs) are a group of naturally occurring fatty acids present mainly in fats from ruminants. Milk contains over 20 isomers of CLA but the predominant one is cis-9,trans-11-CLA (bovinic acid). Biomedical studies with animal models have shown that this isomer has anticarcinogenic and anti-atherogenic activities. Bovinic acid is produced as an intermediate in the rumen biohydrogenation of linoleic acid but not of linolenic acid. However, it is only a transient intermediate, and the major source of milk fat CLA is from endogenous synthesis (PMID: 10393134, 15736916).

   

13(S)-Hydroperoxylinolenic acid

(9Z,11E,15Z)-(13S)-13-Hydroperoxyoctadeca-9,11,15-trienoic acid

C18H30O4 (310.214398)


13(s)-hydroperoxylinolenic acid, also known as 13(S)-hpotre or 13-hpot, belongs to lineolic acids and derivatives class of compounds. Those are derivatives of lineolic acid. Lineolic acid is a polyunsaturated omega-6 18 carbon long fatty acid, with two CC double bonds at the 9- and 12-positions. Thus, 13(s)-hydroperoxylinolenic acid is considered to be an octadecanoid lipid molecule. 13(s)-hydroperoxylinolenic acid is practically insoluble (in water) and a weakly acidic compound (based on its pKa). 13(s)-hydroperoxylinolenic acid can be found in a number of food items such as grass pea, garden tomato (variety), american butterfish, and black crowberry, which makes 13(s)-hydroperoxylinolenic acid a potential biomarker for the consumption of these food products. . D009676 - Noxae > D016877 - Oxidants > D010545 - Peroxides

   

5-HEPE

(6E,8Z,11Z,14Z,17Z)-5-hydroxyicosa-6,8,11,14,17-pentaenoic acid

C20H30O3 (318.219483)


5-HEPE is a major eicosanoid formed from eicosapentaenoic acid (EPA). 5-HEPE is produced in human neutrophils. The eicosanoids are a diverse family of molecules that have powerful effects on cell function. They are best known as intercellular messengers, having autocrine and paracrine effects following their secretion from the cells that synthesize them. The diversity of possible products that can be synthesized from eicosatrienoic acid is due, in part to the variety of enzymes that can act on it. Studies have placed many, but not all, of these enzymes at or inside the nucleus. In some cases, the nuclear import or export of eicosatrienoic acid-processing enzymes is highly regulated. Furthermore, nuclear receptors that are activated by specific eicosanoids are known to exist. (PMID: 8847485, 15896193) [HMDB] 5-HEPE is a major eicosanoid formed from eicosapentaenoic acid (EPA). 5-HEPE is produced in human neutrophils. The eicosanoids are a diverse family of molecules that have powerful effects on cell function. They are best known as intercellular messengers, having autocrine and paracrine effects following their secretion from the cells that synthesize them. The diversity of possible products that can be synthesized from eicosatrienoic acid is due, in part to the variety of enzymes that can act on it. Studies have placed many, but not all, of these enzymes at or inside the nucleus. In some cases, the nuclear import or export of eicosatrienoic acid-processing enzymes is highly regulated. Furthermore, nuclear receptors that are activated by specific eicosanoids are known to exist. (PMID: 8847485, 15896193).

   

Linoleate

cis-9, cis-12-octadecadienoic acid

C18H32O2 (280.2402172)


COVID info from PDB, Protein Data Bank, WikiPathways Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

   

Rumenic acid

9Z, 11E-Linoleic acid

C18H32O2 (280.2402172)


Bovinic acid is a conjugated linoleic acid, present in human adipose tissue; the amount of bovinic acid in humans is significantly related to milk fat intake. Conjugated linoleic acids (CLAs) are a group of naturally occurring fatty acids present mainly in fats from ruminants. Milk contains over 20 isomers of CLA but the predominant one is cis-9,trans-11-CLA (bovinic acid). Biomedical studies with animal models have shown that this isomer has anticarcinogenic and anti-atherogenic activities. Bovinic acid is produced as an intermediate in the rumen biohydrogenation of linoleic acid but not of linolenic acid. However, it is only a transient intermediate, and the major source of milk fat CLA is from endogenous synthesis. (PMID 10393134, 15736916) [HMDB]

   

FA 18:2

(S)-13-(cyclopent-2-en-1-yl)tridecanoic acid

C18H32O2 (280.2402172)


Linolelaidic acid (Linoelaidic acid), an omega-6 trans fatty acid, acts as a source of energy. Linolelaidic acid is an essential nutrient, adding in enteral, parenteral, and infant formulas. Linolelaidic acid can be used for heart diseases research[1]. Linolelaidic acid (Linoelaidic acid), an omega-6 trans fatty acid, acts as a source of energy. Linolelaidic acid is an essential nutrient, adding in enteral, parenteral, and infant formulas. Linolelaidic acid can be used for heart diseases research[1].

   

Cognac oil

9,12-Octadecadienoic acid, (Z,Z)-, labeled with carbon-14

C18H32O2 (280.2402172)


An octadecadienoic acid in which the two double bonds are at positions 9 and 12 and have Z (cis) stereochemistry. COVID info from PDB, Protein Data Bank, WikiPathways Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

   

13(s)-hydroperoxy-(9z,11e,15z)-octadecatrienoic acid

(9Z,11E,13S,15Z)-13-hydroperoxyoctadeca-9,11,15-trienoic acid

C18H30O4 (310.214398)


A lipid hydroperoxide, obtained by the formal substitution of a hydrogen at position 9 of (9Z,11E,15Z)-octadeca-9,11,15-trienoic acid by a hydroperoxy group (the 13S-stereoisomer). Biochemically, it is an 18-C rearrangement and primary peroxidation product of alpha-linolenic acid, an intermediate in prostaglandin and leukotriene metabolism, and the substrate of the lyase enzyme hydroperoxide dehydratase. D009676 - Noxae > D016877 - Oxidants > D010545 - Peroxides