Showing Compound Card for Gamma-linolenic acid (CDB000374)

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Record Information
Version1.0
Created at2020-03-19 00:33:41 UTC
Updated at2020-12-07 19:07:24 UTC
CannabisDB IDCDB000374
Secondary Accession NumbersNot Available
Cannabis Compound Identification
Common NameGamma-linolenic acid
Description
Structure
Thumb
MOLSDFPDBSMILESInChI
Synonyms
Chemical FormulaC18H30O2
Average Molecular Weight278.43
Monoisotopic Molecular Weight278.2246
IUPAC Name(6Z,9Z,12Z)-octadeca-6,9,12-trienoic acid
Traditional Namegamma linolenic acid
CAS Registry Number506-26-3
SMILES
CCCCC\C=C/C\C=C/C\C=C/CCCCC(O)=O
InChI Identifier
InChI=1S/C18H30O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h6-7,9-10,12-13H,2-5,8,11,14-17H2,1H3,(H,19,20)/b7-6-,10-9-,13-12-
InChI KeyVZCCETWTMQHEPK-QNEBEIHSSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as lineolic acids and derivatives. These 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.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassLineolic acids and derivatives
Direct ParentLineolic acids and derivatives
Alternative Parents
Substituents
  • Octadecanoid
  • Long-chain fatty acid
  • Fatty acid
  • Unsaturated fatty acid
  • Straight chain fatty acid
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Disposition

Route of exposure:

Source:

Biological location:

Role

Biological role:

Industrial application:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
logPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP6.59ALOGPS
logP6.06ChemAxon
logS-6ALOGPS
pKa (Strongest Acidic)4.92ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count13ChemAxon
Refractivity89.64 m³·mol⁻¹ChemAxon
Polarizability33.8 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
EI-MSMass Spectrum (Electron Ionization)splash10-00nf-9200000000-cf911df79059a750cb2a2015-03-01View Spectrum
GC-MSGamma-linolenic acid, 1 TMS, GC-MS Spectrumsplash10-005c-9800000000-7b6e7a36b048f5ed69bdSpectrum
GC-MSGamma-linolenic acid, non-derivatized, GC-MS Spectrumsplash10-00b9-9300000000-254ecb989081fdc719d2Spectrum
GC-MSGamma-linolenic acid, non-derivatized, GC-MS Spectrumsplash10-005c-9800000000-7b6e7a36b048f5ed69bdSpectrum
Predicted GC-MSGamma-linolenic acid, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-0006-9650000000-eec5566c0f0f90bf0049Spectrum
Predicted GC-MSGamma-linolenic acid, 1 TMS, Predicted GC-MS Spectrum - 70eV, Positivesplash10-007c-9431000000-b239852c91e567668780Spectrum
Predicted GC-MSGamma-linolenic acid, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSGamma-linolenic acid, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
NMR
Pathways
Pathways
Protein Targets
Enzymes
Protein NameGene NameLocusUniprot IDDetails
Bile acid-CoA:amino acid N-acyltransferaseBAAT9q22.3Q14032 details
Cytosolic acyl coenzyme A thioester hydrolaseACOT71p36O00154 details
Acyl-coenzyme A thioesterase 2, mitochondrialACOT214q24.3P49753 details
Acyl-coenzyme A thioesterase 4ACOT414q24.3Q8N9L9 details
Acyl-coenzyme A thioesterase 8ACOT820q13.12O14734 details
Fatty acid desaturase 2FADS211q12.2O95864 details
Acyl-coenzyme A thioesterase 1ACOT114q24.3Q86TX2 details
TransportersNot Available
Metal Bindings
Protein NameGene NameLocusUniprot IDDetails
Fatty acid desaturase 2FADS211q12.2O95864 details
ReceptorsNot Available
Transcriptional FactorsNot Available
Concentrations Data
Not Available
HMDB IDHMDB0003073
DrugBank IDDB13854
Phenol Explorer Compound IDNot Available
FoodDB IDFDB002943
KNApSAcK IDC00001226
Chemspider ID4444436
KEGG Compound IDC06426
BioCyc IDCPD-8117
BiGG ID48234
Wikipedia LinkGamma-Linolenic_acid
METLIN ID386
PubChem Compound5280933
PDB IDNot Available
ChEBI ID28661
References
General References
  1. Turner CE, Elsohly MA, Boeren EG: Constituents of Cannabis sativa L. XVII. A review of the natural constituents. J Nat Prod. 1980 Mar-Apr;43(2):169-234. doi: 10.1021/np50008a001. [PubMed:6991645 ]
  2. Sergeant S, Rahbar E, Chilton FH: Gamma-linolenic acid, Dihommo-gamma linolenic, Eicosanoids and Inflammatory Processes. Eur J Pharmacol. 2016 Aug 15;785:77-86. doi: 10.1016/j.ejphar.2016.04.020. Epub 2016 Apr 12. [PubMed:27083549 ]
  3. Williams HC: Evening primrose oil for atopic dermatitis. BMJ. 2003 Dec 13;327(7428):1358-9. doi: 10.1136/bmj.327.7428.1358. [PubMed:14670851 ]
  4. Kanehara S, Ohtani T, Uede K, Furukawa F: Clinical effects of undershirts coated with borage oil on children with atopic dermatitis: a double-blind, placebo-controlled clinical trial. J Dermatol. 2007 Dec;34(12):811-5. doi: 10.1111/j.1346-8138.2007.00391.x. [PubMed:18078406 ]

Enzymes

Enzyme Details
1. Bile acid-CoA:amino acid N-acyltransferase
General function:
Involved in thiolester hydrolase activity
Specific function:
Involved in bile acid metabolism. In liver hepatocytes catalyzes the second step in the conjugation of C24 bile acids (choloneates) to glycine and taurine before excretion into bile canaliculi. The major components of bile are cholic acid and chenodeoxycholic acid. In a first step the bile acids are converted to an acyl-CoA thioester, either in peroxisomes (primary bile acids deriving from the cholesterol pathway), or cytoplasmic at the endoplasmic reticulum (secondary bile acids). May catalyze the conjugation of primary or secondary bile acids, or both. The conjugation increases the detergent properties of bile acids in the intestine, which facilitates lipid and fat-soluble vitamin absorption. In turn, bile acids are deconjugated by bacteria in the intestine and are recycled back to the liver for reconjugation (secondary bile acids). May also act as an acyl-CoA thioesterase that regulates intracellular levels of free fatty acids. In vitro, catalyzes the hydrolysis of long- and very long-chain saturated acyl-CoAs to the free fatty acid and coenzyme A (CoASH), and conjugates glycine to these acyl-CoAs.
Gene Name:
BAAT
Uniprot ID:
Q14032
Molecular weight:
46298.865
Enzyme Details
2. Cytosolic acyl coenzyme A thioester hydrolase
General function:
Lipid transport and metabolism
Specific function:
Acyl-CoA thioesterases are a group of enzymes that catalyze the hydrolysis of acyl-CoAs to the free fatty acid and coenzyme A (CoASH), providing the potential to regulate intracellular levels of acyl-CoAs, free fatty acids and CoASH. May play an important physiological function in brain. May play a regulatory role by modulating the cellular levels of fatty acyl-CoA ligands for certain transcription factors as well as the substrates for fatty acid metabolizing enzymes, contributing to lipid homeostasis. Has broad specificity, active towards fatty acyl-CoAs with chain-lengths of C8-C18. Has a maximal activity toward palmitoyl-CoA.
Gene Name:
ACOT7
Uniprot ID:
O00154
Molecular weight:
40454.945
Enzyme Details
3. Acyl-coenzyme A thioesterase 2, mitochondrial
General function:
Involved in thiolester hydrolase activity
Specific function:
Acyl-CoA thioesterases are a group of enzymes that catalyze the hydrolysis of acyl-CoAs to the free fatty acid and coenzyme A (CoASH), providing the potential to regulate intracellular levels of acyl-CoAs, free fatty acids and CoASH. Displays high levels of activity on medium- and long chain acyl CoAs.
Gene Name:
ACOT2
Uniprot ID:
P49753
Molecular weight:
53218.02
Enzyme Details
4. Acyl-coenzyme A thioesterase 4
General function:
Involved in thiolester hydrolase activity
Specific function:
Acyl-CoA thioesterases are a group of enzymes that catalyze the hydrolysis of acyl-CoAs to the free fatty acid and coenzyme A (CoASH), providing the potential to regulate intracellular levels of acyl-CoAs, free fatty acids and CoASH (By similarity). Succinyl-CoA thioesterase that also hydrolyzes long chain saturated and unsaturated monocarboxylic acyl-CoAs.
Gene Name:
ACOT4
Uniprot ID:
Q8N9L9
Molecular weight:
46326.09
Enzyme Details
5. Acyl-coenzyme A thioesterase 8
General function:
Involved in acyl-CoA thioesterase activity
Specific function:
Acyl-CoA thioesterases are a group of enzymes that catalyze the hydrolysis of acyl-CoAs to the free fatty acid and coenzyme A (CoASH), providing the potential to regulate intracellular levels of acyl-CoAs, free fatty acids and CoASH. May mediate Nef-induced down-regulation of CD4. Major thioesterase in peroxisomes. Competes with BAAT (Bile acid CoA: amino acid N-acyltransferase) for bile acid-CoA substrate (such as chenodeoxycholoyl-CoA). Shows a preference for medium-length fatty acyl-CoAs (By similarity). May be involved in the metabolic regulation of peroxisome proliferation.
Gene Name:
ACOT8
Uniprot ID:
O14734
Molecular weight:
35914.02
Enzyme Details
6. Fatty acid desaturase 2
General function:
Involved in heme binding
Specific function:
Component of a lipid metabolic pathway that catalyzes biosynthesis of highly unsaturated fatty acids (HUFA) from precursor essential polyunsaturated fatty acids (PUFA) linoleic acid (LA) (18:2n-6) and alpha-linolenic acid (ALA) (18:3n-3). Catalyzes the first and rate limiting step in this pathway which is the desaturation of LA (18:2n-6) and ALA (18:3n-3) into gamma- linoleic acid (GLA) (18:3n-6) and stearidonic acid (18:4n-3) respectively and other desaturation steps. Highly unsaturated fatty acids (HUFA) play pivotal roles in many biological functions. It catalizes as well the introduction of a cis double bond in palmitate to produce the mono-unsaturated fatty acid sapienate, the most abundant fatty acid in sebum
Gene Name:
FADS2
Uniprot ID:
O95864
Molecular weight:
52259.1
Enzyme Details
7. Acyl-coenzyme A thioesterase 1
General function:
Involved in thiolester hydrolase activity
Specific function:
Acyl-CoA thioesterases are a group of enzymes that catalyze the hydrolysis of acyl-CoAs to the free fatty acid and coenzyme A (CoASH), providing the potential to regulate intracellular levels of acyl-CoAs, free fatty acids and CoASH. Active towards fatty acyl-CoA with chain-lengths of C12-C16 (By similarity).
Gene Name:
ACOT1
Uniprot ID:
Q86TX2
Molecular weight:
46276.96