Record Information |
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Version | 5.0 |
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Status | Detected and Quantified |
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Creation Date | 2006-05-22 14:17:30 UTC |
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Update Date | 2022-03-07 02:49:12 UTC |
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HMDB ID | HMDB0001976 |
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Secondary Accession Numbers | - HMDB0060113
- HMDB01976
- HMDB60113
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Metabolite Identification |
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Common Name | Docosapentaenoic acid (22n-6) |
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Description | Docosapentaenoic acid is an unsaturated fatty acid found in fish oils. It is a minor constituent of the total serum unsaturated fatty acids in humans. Docosapentaenoic acid (22n-6) is practically insoluble (in water) and a weakly acidic compound (based on its pKa). Docosapentaenoic acid (22n-6) can be found in blood and urine, as well as in human adipose tissue, fibroblasts, and platelet tissues. Within the cell, docosapentaenoic acid (22n-6) is primarily located in the membrane (predicted from logP). It can also be found in the extracellular space. In humans, docosapentaenoic acid (22n-6) is involved in alpha-linolenic acid and linoleic acid metabolism. Docosapentaenoic acid (22n-6) is found to be associated with thyroid cancer. |
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Structure | CCCCC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCC(O)=O InChI=1S/C22H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h6-7,9-10,12-13,15-16,18-19H,2-5,8,11,14,17,20-21H2,1H3,(H,23,24)/b7-6-,10-9-,13-12-,16-15-,19-18- |
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Synonyms | Value | Source |
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(all-Z)-4,7,10,13,16-Docosapentaenoic acid | ChEBI | 22:5(4Z,7Z,10Z,13Z,16Z) | ChEBI | 4Z,7Z,10Z,13Z,16Z-Docosapentaenoic acid | ChEBI | all-cis-Docosa-4,7,10,13,16-pentaenoic acid | ChEBI | DPAn-6 | ChEBI | (all-Z)-4,7,10,13,16-Docosapentaenoate | Generator | 4Z,7Z,10Z,13Z,16Z-Docosapentaenoate | Generator | all-cis-Docosa-4,7,10,13,16-pentaenoate | Generator | Docosapentaenoate (22N-6) | Generator | Docosa-4,7,10,13,16-pentaenoic acid | HMDB | Docosapentaenoate | HMDB | Docosapentaenoic acid | HMDB | Osbond acid | HMDB | FA(22:5(4Z,7Z,10Z,13Z,16Z)) | HMDB | (all-Z)-7, 10, 13, 16, 19-Docosapentaenoic acid | HMDB | Docosapentaenoic acid (C22:5 N6) | HMDB | Docosapentaenoic acid, (all Z)-isomer | HMDB | Docosa-4,7,10,13,16-pentaenoic acid, (all-Z)-isomer | HMDB | (4Z,7Z,10Z,13Z,16Z)-4,7,10,13,16-Docosapentaenoic acid | HMDB | DPA | HMDB | FA(22:5n6) | HMDB |
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Chemical Formula | C22H34O2 |
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Average Molecular Weight | 330.5042 |
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Monoisotopic Molecular Weight | 330.255880332 |
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IUPAC Name | (4Z,7Z,10Z,13Z,16Z)-docosa-4,7,10,13,16-pentaenoic acid |
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Traditional Name | (4Z,7Z,10Z,13Z,16Z)-docosa-4,7,10,13,16-pentaenoic acid |
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CAS Registry Number | 25448-00-4 |
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SMILES | CCCCC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCC(O)=O |
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InChI Identifier | InChI=1S/C22H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h6-7,9-10,12-13,15-16,18-19H,2-5,8,11,14,17,20-21H2,1H3,(H,23,24)/b7-6-,10-9-,13-12-,16-15-,19-18- |
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InChI Key | AVKOENOBFIYBSA-WMPRHZDHSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as very long-chain fatty acids. These are fatty acids with an aliphatic tail that contains at least 22 carbon atoms. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Fatty Acyls |
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Sub Class | Fatty acids and conjugates |
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Direct Parent | Very long-chain fatty acids |
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Alternative Parents | |
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Substituents | - Very long-chain 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
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Molecular Framework | Aliphatic acyclic compounds |
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External Descriptors | |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | Not Available |
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Role | Not Available |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | | Show more...
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Kovats Retention IndicesUnderivatizedDerivatized | Show more...
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Spectra |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - Docosapentaenoic acid (22n-6) GC-MS (Non-derivatized) - 70eV, Positive | splash10-00fu-7490000000-97ad3e356a5f908f9003 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Docosapentaenoic acid (22n-6) GC-MS (1 TMS) - 70eV, Positive | splash10-0079-9244000000-8e631b61a994e509b114 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Docosapentaenoic acid (22n-6) GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 10V, Positive-QTOF | splash10-01q9-0139000000-31a18234c1c393f0a6a7 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 20V, Positive-QTOF | splash10-0239-4592000000-fa33f23033ae64b97560 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 40V, Positive-QTOF | splash10-006x-7960000000-ccf21f4fdb0af5b5c619 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 10V, Negative-QTOF | splash10-004i-0019000000-fa512c1688ce00ffd41d | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 20V, Negative-QTOF | splash10-004r-1059000000-8f65bcb90bc078a7912d | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 40V, Negative-QTOF | splash10-0a4l-9140000000-4ded7c8842575d2752c5 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 10V, Negative-QTOF | splash10-004i-0009000000-f4bd181f937819513660 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 20V, Negative-QTOF | splash10-01t9-1019000000-a6b85cd3220846053c5c | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 40V, Negative-QTOF | splash10-052f-9041000000-f6b90f282a7eccd547fd | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 10V, Positive-QTOF | splash10-01q9-1239000000-b1d4cd921a69d9f8653f | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 20V, Positive-QTOF | splash10-01q9-6933000000-1d63fd3f377179dddb82 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Docosapentaenoic acid (22n-6) 40V, Positive-QTOF | splash10-053u-9800000000-eeb640c3008512e3c40a | 2021-09-24 | Wishart Lab | View Spectrum |
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Biological Properties |
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Cellular Locations | - Extracellular
- Membrane (predicted from logP)
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Biospecimen Locations | |
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Tissue Locations | - Adipose Tissue
- Fibroblasts
- Placenta
- Platelet
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Pathways | |
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Normal Concentrations |
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Blood | Detected and Quantified | 10.0 +/- 4.1 uM | Adult (>18 years old) | Not Specified | Normal | | details | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details | Urine | Detected and Quantified | 6.4 +/- 5.6 umol/mmol creatinine | Adult (>18 years old) | Both | Normal | | details |
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Abnormal Concentrations |
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Blood | Detected and Quantified | 13.9 +/- 5.2 uM | Adult (>18 years old) | Not Specified | Isovaleric acidemia | | details | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Colorectal cancer | | details | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Colorectal cancer | | details | Feces | Detected but not Quantified | Not Quantified | Newborn (0-30 days old) | Not Specified | Premature neonates | | details | Urine | Detected and Quantified | 3.0 +/- 2.3 umol/mmol creatinine | Adult (>18 years old) | Both | Thyroid cancer | | details |
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Associated Disorders and Diseases |
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Disease References | Isovaleric acidemia |
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- Dercksen M, Kulik W, Mienie LJ, Reinecke CJ, Wanders RJ, Duran M: Polyunsaturated fatty acid status in treated isovaleric acidemia patients. Eur J Clin Nutr. 2016 Oct;70(10):1123-1126. doi: 10.1038/ejcn.2016.100. Epub 2016 Jun 22. [PubMed:27329611 ]
| Colorectal cancer |
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- Sinha R, Ahn J, Sampson JN, Shi J, Yu G, Xiong X, Hayes RB, Goedert JJ: Fecal Microbiota, Fecal Metabolome, and Colorectal Cancer Interrelations. PLoS One. 2016 Mar 25;11(3):e0152126. doi: 10.1371/journal.pone.0152126. eCollection 2016. [PubMed:27015276 ]
- Goedert JJ, Sampson JN, Moore SC, Xiao Q, Xiong X, Hayes RB, Ahn J, Shi J, Sinha R: Fecal metabolomics: assay performance and association with colorectal cancer. Carcinogenesis. 2014 Sep;35(9):2089-96. doi: 10.1093/carcin/bgu131. Epub 2014 Jul 18. [PubMed:25037050 ]
| Thyroid cancer |
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- Kim KM, Jung BH, Lho DS, Chung WY, Paeng KJ, Chung BC: Alteration of urinary profiles of endogenous steroids and polyunsaturated fatty acids in thyroid cancer. Cancer Lett. 2003 Dec 30;202(2):173-9. [PubMed:14643447 ]
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Associated OMIM IDs | |
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External Links |
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DrugBank ID | Not Available |
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Phenol Explorer Compound ID | Not Available |
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FooDB ID | FDB022774 |
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KNApSAcK ID | Not Available |
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Chemspider ID | 4945614 |
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KEGG Compound ID | Not Available |
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BioCyc ID | Not Available |
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BiGG ID | Not Available |
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Wikipedia Link | Not Available |
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METLIN ID | 6412 |
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PubChem Compound | 6441454 |
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PDB ID | Not Available |
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ChEBI ID | 65136 |
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Food Biomarker Ontology | Not Available |
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VMH ID | Not Available |
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MarkerDB ID | Not Available |
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Good Scents ID | Not Available |
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References |
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Synthesis Reference | Not Available |
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Material Safety Data Sheet (MSDS) | Not Available |
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General References | - Williard DE, Nwankwo JO, Kaduce TL, Harmon SD, Irons M, Moser HW, Raymond GV, Spector AA: Identification of a fatty acid delta6-desaturase deficiency in human skin fibroblasts. J Lipid Res. 2001 Apr;42(4):501-8. [PubMed:11290821 ]
- Marckmann P, Lassen A, Haraldsdottir J, Sandstrom B: Biomarkers of habitual fish intake in adipose tissue. Am J Clin Nutr. 1995 Nov;62(5):956-9. [PubMed:7572741 ]
- Pedersen JI, Ringstad J, Almendingen K, Haugen TS, Stensvold I, Thelle DS: Adipose tissue fatty acids and risk of myocardial infarction--a case-control study. Eur J Clin Nutr. 2000 Aug;54(8):618-25. [PubMed:10951510 ]
- Park Y, Harris W: EPA, but not DHA, decreases mean platelet volume in normal subjects. Lipids. 2002 Oct;37(10):941-6. [PubMed:12530552 ]
- Francois CA, Connor SL, Bolewicz LC, Connor WE: Supplementing lactating women with flaxseed oil does not increase docosahexaenoic acid in their milk. Am J Clin Nutr. 2003 Jan;77(1):226-33. [PubMed:12499346 ]
- Thiele I, Swainston N, Fleming RM, Hoppe A, Sahoo S, Aurich MK, Haraldsdottir H, Mo ML, Rolfsson O, Stobbe MD, Thorleifsson SG, Agren R, Bolling C, Bordel S, Chavali AK, Dobson P, Dunn WB, Endler L, Hala D, Hucka M, Hull D, Jameson D, Jamshidi N, Jonsson JJ, Juty N, Keating S, Nookaew I, Le Novere N, Malys N, Mazein A, Papin JA, Price ND, Selkov E Sr, Sigurdsson MI, Simeonidis E, Sonnenschein N, Smallbone K, Sorokin A, van Beek JH, Weichart D, Goryanin I, Nielsen J, Westerhoff HV, Kell DB, Mendes P, Palsson BO: A community-driven global reconstruction of human metabolism. Nat Biotechnol. 2013 May;31(5):419-25. doi: 10.1038/nbt.2488. Epub 2013 Mar 3. [PubMed:23455439 ]
- Elshenawy S, Pinney SE, Stuart T, Doulias PT, Zura G, Parry S, Elovitz MA, Bennett MJ, Bansal A, Strauss JF 3rd, Ischiropoulos H, Simmons RA: The Metabolomic Signature of the Placenta in Spontaneous Preterm Birth. Int J Mol Sci. 2020 Feb 4;21(3). pii: ijms21031043. doi: 10.3390/ijms21031043. [PubMed:32033212 ]
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