- Domoic acid
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Domoic acid Identifiers CAS number 14277-97-5 PubChem 5282253 ChemSpider 4445428 ChEMBL CHEMBL420720 Jmol-3D images Image 1 - O=C(O)[C@H]1NC[C@H](/C(=C\C=C\[C@H](C(=O)O)C)C)[C@@H]1CC(=O)O
- InChI=1S/C15H21NO6/c1-8(4-3-5-9(2)14(19)20)11-7-16-13(15(21)22)10(11)6-12(17)18/h3-5,9-11,13,16H,6-7H2,1-2H3,(H,17,18)(H,19,20)(H,21,22)/b5-3+,8-4-/t9-,10+,11-,13+/m1/s1
Key: VZFRNCSOCOPNDB-AOKDLOFSSA-NInChI=1/C15H21NO6/c1-8(4-3-5-9(2)14(19)20)11-7-16-13(15(21)22)10(11)6-12(17)18/h3-5,9-11,13,16H,6-7H2,1-2H3,(H,17,18)(H,19,20)(H,21,22)/b5-3+,8-4-/t9-,10+,11-,13+/m1/s1
Key: VZFRNCSOCOPNDB-AOKDLOFSBM
Properties Molecular formula C15H21NO6 Molar mass 311.3303 g/mol Density 1.273 g/cm3 Boiling point 607.2 degrees Celsius at 760 mmHg (101.3 kPa)
Vapor pressure 2.62×10−16 mmHg (34.9 fPa) at 25 °C Hazards R-phrases R20 R21 R22 S-phrases S36 S37 Flash point 321°C acid (verify) (what is:
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)Infobox references Domoic acid (DA), the neurotoxin that causes amnesic shellfish poisoning (ASP), is a kainic acid analog, heterocyclic amino acid associated with certain harmful algal blooms.[1]
Contents
Occurrence
In 1958, domoic acid was originally isolated from the red alga called "doumoi" or "hanayanagi" (Chondria armata[2]) in Japan. "Doumoi" is used as an anthelmintic in Tokunoshima, Kagoshima.[citation needed] Domoic acid is also produced by diatoms of the genus Pseudo-nitzschia and the species Nitzschia navis-varingica.[3]
Pseudo-nitzschia multiseries loses most of its ability to produce domoic acid when it is cultured axenically. However, domoic acid production recovers when bacteria from the original culture are reintroduced to axenic cultures, indicating a bacterial association with domoic acid production in this species.[4]
The increasing frequency and geographic extent of toxic algal blooms along populated coastlines is generally attributed to human activities.[5]
Chemistry
Domoic acid is a structural analog of kainic acid and proline.
Toxicology
Considerable recent research has been carried out by the Marine Mammal Center and other scientific centers on the association of domoic acid-producing harmful algal blooms and neurological damage in marine mammals of the Pacific Ocean.
Domoic acid can bioaccumulate in marine organisms such as shellfish, anchovies, and sardines that feed on the phytoplankton known to produce this toxin. DA can accumulate in high concentrations in the tissues of these plankton feeders when the toxic phytoplankton itself is high in concentration in the surrounding waters.
In mammals, including humans, domoic acid acts as a neurotoxin, causing short-term memory loss, brain damage and, in severe cases, death. DA-producing algal blooms are associated with the phenomenon of amnesic shellfish poisoning (ASP). In marine mammals, domoic acid typically causes seizures and tremors. In the brain, domoic acid especially damages the hippocampus and amygdaloid nucleus. It damages the neurons by activating AMPA and kainate receptors, causing an influx of calcium. Although calcium flowing into cells is a normal event, the uncontrolled increase of calcium causes the cell to degenerate. Because the hippocampus may be severely damaged, short-term memory loss occurs.
See also
- Harmful algal blooms
- Pseudo-nitzschia
References
- ^ Domoic Acid and Pseudo-nitzschia References
- ^ Chondria armata
- ^ IOC Taxonomic Reference List of Toxic Plankton Algae
- ^ Direct contact between Pseudo-nitzschia multiseries and bacteria is necessary for the diatom to produce a high level of domoic acid Kenji Kobayashi, Yoshinobu Takata and Masaaki Kodama
- ^ Diatoms and Domoic Acid in natural and Iron enriched waters of the oceanic Pacific Mary W. Silver et all
External links
- Domoic Acid and Pseudo-nitzschia References at Fisheries and Oceans Canada
- Amnesic Shellfish Poisoning, Domoic Acid, and Pseudo-nitzschia links at the ISSHA website
- Domoic acid at IPCS INCHEM
- DOMOIC ACID - A MAJOR CONCERN TO WASHINGTON STATE’S SHELLFISH LOVERS at Washington Department of Fish and Wildlife
Glutamatergics Ionotropic Agonists: 5-Fluorowillardiine • AMPA • Domoic acid • Quisqualic acid; Positive allosteric modulators: Aniracetam • Cyclothiazide • CX-516 • CX-546 • CX-614 • CX-691 • CX-717 • Diazoxide • HCTZ • IDRA-21 • LY-392,098 • LY-404,187 • LY-451,395 • LY-451,646 • LY-503,430 • Oxiracetam • PEPA • Piracetam • Pramiracetam • S-18986 • Sunifiram • Unifiram
Antagonists: ATPO • Barbiturates • Caroverine • CNQX • DNQX • GYKI-52466 • NBQX • Perampanel • Talampanel • Tezampanel • Topiramate; Negative allosteric modulators: GYKI-53,655Agonists: Glutamate/acite site competitive agonists: Aspartate • Glutamate • Homoquinolinic acid • Ibotenic acid • NMDA • Quinolinic acid • Tetrazolylglycine; Glycine site agonists: ACBD • ACPC • ACPD • Alanine • CCG • Cycloserine • DHPG • Fluoroalanine • Glycine • HA-966 • L-687,414 • Milacemide • Sarcosine • Serine • Tetrazolylglycine; Polyamine site agonists: Acamprosate • Spermidine • Spermine
Antagonists: Competitive antagonists: AP5 (APV) • AP7 • CGP-37849 • CGP-39551 • CGP-39653 • CGP-40116 • CGS-19755 • CPP • LY-233,053 • LY-235,959 • LY-274,614 • MDL-100,453 • Midafotel (d-CPPene) • NPC-12,626 • NPC-17,742 • PBPD • PEAQX • Perzinfotel • PPDA • SDZ-220581 • Selfotel; Noncompetitive antagonists: ARR-15,896 • Caroverine • Dexanabinol • FPL-12495 • FR-115,427 • Hodgkinsine • Magnesium • MDL-27,266 • NPS-1506 • Psychotridine • Zinc; Uncompetitive pore blockers: 2-MDP • 3-MeO-PCP • 8A-PDHQ • Alaproclate • Amantadine • Aptiganel • ARL-12,495 • ARL-15,896-AR • ARL-16,247 • Budipine • Delucemine • Dexoxadrol • Dextrallorphan • Dieticyclidine • Dizocilpine • Endopsychosin • Esketamine • Etoxadrol • Eticyclidine • Gacyclidine • Ibogaine • Indantadol • Ketamine • Ketobemidone • Loperamide • Memantine • Meperidine (Pethidine) • Methadone • Methorphan (Dextromethorphan, Levomethorphan) • Methoxetamine • Milnacipran • Morphanol (Dextrorphan, Levorphanol) • NEFA • Neramexane • Nitrous oxide • Noribogaine • Orphenadrine • PCPr • Phencyclamine • Phencyclidine • Propoxyphene • Remacemide • Rhynchophylline • Riluzole • Rimantadine • Rolicyclidine • Sabeluzole • Tenocyclidine • Tiletamine • Tramadol • Xenon; Glycine site antagonists: ACEA-1021 • ACEA-1328 • ACPC • Carisoprodol • CGP-39653 • CKA • DCKA • Felbamate • Gavestinel • GV-196,771 • Kynurenic acid • L-689,560 • L-701,324 • Lacosamide • Licostinel • LU-73,068 • MDL-105,519 • Meprobamate • MRZ 2/576 • PNQX • ZD-9379; NR2B subunit antagonists: Besonprodil • CO-101,244 (PD-174,494) • CP-101,606 • Eliprodil • Haloperidol • Ifenprodil • Isoxsuprine • Nylidrin • Ro8-4304 • Ro25-6981 • Traxoprodil; Polyamine site antagonists: Arcaine • Co 101676 • Diaminopropane • Acamprosate • Diethylenetriamine • Huperzine A • Putrescine • Ro 25-6981; Unclassified/unsorted antagonists: Chloroform • Diethyl ether • Enflurane • Ethanol (Alcohol) • Halothane • Isoflurane • Methoxyflurane • Toluene • Trichloroethane • Trichloroethanol • Trichloroethylene • XyleneAgonists: 5-Iodowillardiine • ATPA • Domoic acid • Kainic acid • LY-339,434 • SYM-2081
Antagonists: CNQX • DNQX • LY-382,884 • NBQX • NS102 • Tezampanel • Topiramate • UBP-302; Negative allosteric modulators: NS-3763Metabotropic Agonists: Unselective: ACPD • DHPG • Quisqualic acid; mGlu1-selective: Ro01-6128 • Ro67-4853 • Ro67-7476 • VU-71; mGlu5-selective: ADX-47273 • CDPPB • CHPG • DFB • VU-1545
Antagonists: Unselective: MCPG • NPS-2390; mGlu1-selective: BAY 36-7620 • CPCCOEt • LY-367,385 • LY-456,236; mGlu5-selective: Dipraglurant • DMeOB • Fenobam • LY-344,545 • MPEP • MTEP • SIB-1757 • SIB-1893Agonists: Unselective: L-AP4; mGlu4-selective: PHCCC • VU-001,171 • VU-0155,041; mGlu7-selective: AMN082; mGlu8-selective: DCPG
Antagonists: Unselective: CPPG • MAP4 • MSOP • MPPG • MTPG • UBP-1112; mGlu7-selective: MMPIPTransporter
inhibitorsDHKA • PDC • WAY-213,613vGluTsCategories:- Neurotoxins
- Amino acids
- Pyrrolidines
- AMPA receptor modulators
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