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Record Information
Version2.0
Created at2022-09-05 03:38:20 UTC
Updated at2022-09-05 03:38:20 UTC
NP-MRD IDNP0207145
Secondary Accession NumbersNone
Natural Product Identification
Common Nameciguatoxin ctx4b
DescriptionCiguatoxin 4B, also known as gambiertoxin-4b or CTX-4b, belongs to the class of organic compounds known as ciguatera toxins. These are lipid-soluble polyether compounds consisting of 13 to 14 rings fused by ether linkages into a most rigid ladder-like structure. Some medications such as Amitriptyline may reduce some symptoms of ciguatera, such as fatigue and parenthesis, although benefit does not occur in every case. Because it does not cross the blood brain barrier (BBB), ciguatoxins solely affect the peripheral nervous system (PNS) (L994). Ciguatoxin 4B is an extremely weak basic (essentially neutral) compound (based on its pKa). Ciguatoxin 4B is a potentially toxic compound. Also used are steroids and vitamin supplements, but these merely support the body's recovery rather than directly reducing the toxic effects. Ciguatoxin is a fish toxin consisting of apolycyclic ethers produced by Gambierdiscus (dinoflagellates) from gambiertoxins. The major symptoms will develop just a few hours of toxin ingestion: Vomiting, diarrhea, numbness of extremities, mouth and lips, reversal of hot and cold sensation, muscle and joint aches. Ciguatoxin lowers the threshold for opening voltage-gated sodium channels in synapses of the nervous system. There is no effective treatment or antidote for ciguatera poisoning. It is ingested by fish and in turn may be ingested by humans, causing ciguatera poisoning. ciguatoxin ctx4b is found in Gambierdiscus toxicus. Ciguatoxin poisoning can cause paralysis, heart contraction, and changing the senses of hearing and cold.
Structure
Thumb
Synonyms
ValueSource
Gambiertoxin-4bChEBI
CTX-4bKegg
CTX 4bMeSH
GambiertoxinMeSH
Gambiertoxin (CTX-4b)MeSH
Chemical FormulaC60H84O16
Average Mass1061.2994 Da
Monoisotopic Mass1060.57594 Da
IUPAC Name(1R,3S,6R,8S,10R,12S,16R,18R,19R,20S,22R,25S,27R,29Z,32S,34R,36S,38R,40S,42R,43S,44S,45R,47S,48S,49S,50R,52S,54R,56R,58S,59R)-16-[(1E)-buta-1,3-dien-1-yl]-43,44,49,54,58-pentamethyl-2,7,11,17,21,26,33,37,41,46,51,57-dodecaoxaspiro[dodecacyclo[30.28.0.0³,²⁷.0⁶,²⁵.0⁸,²².0¹⁰,²⁰.0¹²,¹⁸.0³⁴,⁵⁸.0³⁶,⁵⁶.0³⁸,⁵².0⁴⁰,⁵⁰.0⁴²,⁴⁷]hexacontane-45,2'-oxolane]-4,14,23,29-tetraene-19,48,59-triol
Traditional Name(1R,3S,6R,8S,10R,12S,16R,18R,19R,20S,22R,25S,27R,29Z,32S,34R,36S,38R,40S,42R,43S,44S,45R,47S,48S,49S,50R,52S,54R,56R,58S,59R)-16-[(1E)-buta-1,3-dien-1-yl]-43,44,49,54,58-pentamethyl-2,7,11,17,21,26,33,37,41,46,51,57-dodecaoxaspiro[dodecacyclo[30.28.0.0³,²⁷.0⁶,²⁵.0⁸,²².0¹⁰,²⁰.0¹²,¹⁸.0³⁴,⁵⁸.0³⁶,⁵⁶.0³⁸,⁵².0⁴⁰,⁵⁰.0⁴²,⁴⁷]hexacontane-45,2'-oxolane]-4,14,23,29-tetraene-19,48,59-triol
CAS Registry NumberNot Available
SMILES
[H]\C(C=C)=C(\[H])[C@]1([H])O[C@@]2([H])[C@]([H])(CC=C1)O[C@]1([H])C[C@]3([H])O[C@]4([H])C=C[C@]5([H])O[C@]6([H])C[C@@]([H])(O)[C@]7(C)O[C@]8([H])C[C@]([H])(C)C[C@]9([H])O[C@@]%10([H])[C@]([H])(C[C@@]9([H])O[C@@]8([H])C[C@@]7([H])O[C@@]6([H])C\C([H])=C([H])/C[C@@]5([H])O[C@@]4([H])C=C[C@@]3([H])O[C@@]1([H])[C@]2([H])O)O[C@]1([H])[C@@]([H])(C)[C@]([H])(C)[C@@]2(CCCO2)O[C@@]1([H])[C@@]([H])(O)[C@]%10([H])C
InChI Identifier
InChI=1S/C60H84O16/c1-7-8-13-34-14-11-17-41-56(65-34)53(63)57-49(69-41)26-43-40(72-57)21-20-38-39(67-43)19-18-37-35(66-38)15-9-10-16-36-45(68-37)28-50(61)59(6)51(71-36)29-46-47(75-59)25-30(2)24-42-44(70-46)27-48-54(73-42)32(4)52(62)58-55(74-48)31(3)33(5)60(76-58)22-12-23-64-60/h7-11,13-14,18-21,30-58,61-63H,1,12,15-17,22-29H2,2-6H3/b10-9-,13-8+/t30-,31+,32+,33+,34+,35-,36+,37+,38+,39-,40-,41+,42+,43+,44-,45-,46+,47-,48+,49-,50-,51-,52+,53-,54-,55-,56+,57-,58+,59+,60-/m1/s1
InChI KeyQFYRPKKCVYDHFZ-OAOKCRGNSA-N
Experimental Spectra
Not Available
Predicted Spectra
Spectrum TypeDescriptionDepositor IDDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 25 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 252 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 50 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 101 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 126 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 151 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 176 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 226 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, H2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Gambierdiscus toxicusLOTUS Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as ciguatera toxins. These are lipid-soluble polyether compounds consisting of 13 to 14 rings fused by ether linkages into a most rigid ladder-like structure.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassCiguatera toxins
Sub ClassNot Available
Direct ParentCiguatera toxins
Alternative Parents
Substituents
  • Ciguatera toxin fragment
  • Ketal
  • Oxepane
  • Monosaccharide
  • Oxane
  • Tetrahydrofuran
  • Secondary alcohol
  • Acetal
  • Dialkyl ether
  • Ether
  • Oxacycle
  • Organoheterocyclic compound
  • Polyol
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organic oxygen compound
  • Alcohol
  • Aliphatic heteropolycyclic compound
Molecular FrameworkAliphatic heteropolycyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP3.59ALOGPS
logP5.52ChemAxon
logS-5.7ALOGPS
pKa (Strongest Acidic)12.92ChemAxon
pKa (Strongest Basic)-3.3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count16ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area180.68 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity280.28 m³·mol⁻¹ChemAxon
Polarizability120.14 ųChemAxon
Number of Rings13ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDC16852
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound23252084
PDB IDNot Available
ChEBI ID68281
Good Scents IDNot Available
References
General References
  1. LOTUS database [Link]