Date published: 2026-5-21

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Territrem B (CAS 70407-20-4)

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Application:
Territrem B is a potent and irreversible inhibitor of acetylcholinesterase
CAS Number:
70407-20-4
Purity:
>95%
Molecular Weight:
526.6
Molecular Formula:
C29H34O9
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Territrem B, a mycotoxin exerts its action through several key molecular mechanisms. It inhibits the release of acetylcholine, a critical neurotransmitter, which disrupts synaptic transmission and affects neural communication. Territrem B further impacts neuronal activity by interfering with the function of voltage-gated sodium channels, leading to a blockade of depolarization and an impairment of neuronal signaling. The influence of Territrem B extends to the modulation of calcium channel activities, which causes a dysregulation of intracellular calcium levels, adding another layer of complexity to its neurotoxic profile. The perturbation in calcium signaling plays a significant role in numerous neuronal processes. Territrem B contributes to oxidative stress and mitochondrial dysfunction within neuronal cells, factors that exacerbate its neurotoxicity.


Territrem B (CAS 70407-20-4) References

  1. Territrem B, a tremorgenic mycotoxin that inhibits acetylcholinesterase with a noncovalent yet irreversible binding mechanism.  |  Chen, JW., et al. 1999. J Biol Chem. 274: 34916-23. PMID: 10574966
  2. Determination of absolute stereochemistries of arisugacin F and Territrem B, novel acetylcholinesterase inhibitors.  |  Handa, M., et al. 2001. J Antibiot (Tokyo). 54: 386-91. PMID: 11426665
  3. Territrems: Naturally Occurring Specific Irreversible Inhibitors of Acetylcholinesterase.  |  Chen, JW. and Ling, KH. 1996. J Biomed Sci. 3: 54-58. PMID: 11725083
  4. Production of polyclonal antibodies against territrem B and detection of territrem B in the conidia of Aspergillus terreus 23-1 by immunoelectron microscopy.  |  Peng, FC., et al. 2004. J Agric Food Chem. 52: 3360-5. PMID: 15161198
  5. Profile of territrem metabolism and cytochrome P-450 3A expression in liver microsomes from Wistar rats of both genders as a function of age.  |  Peng, FC., et al. 2005. J Toxicol Environ Health A. 68: 1871-88. PMID: 16207635
  6. Design, synthesis, and biological evaluation of new territrem B analogues.  |  Jiang, X., et al. 2005. Chem Biodivers. 2: 557-67. PMID: 17192004
  7. The natural product dihydrotanshinone I provides a prototype for uncharged inhibitors that bind specifically to the acetylcholinesterase peripheral site with nanomolar affinity.  |  Beri, V., et al. 2013. Biochemistry. 52: 7486-99. PMID: 24040835
  8. A new anti-acetylcholinesterase α-pyrone meroterpene, arigsugacin I, from mangrove endophytic fungus Penicillium sp. sk5GW1L of Kandelia candel.  |  Huang, X., et al. 2013. Planta Med. 79: 1572-5. PMID: 24081685
  9. Two new meroterpenoids produced by the endophytic fungus Penicillium sp. SXH-65.  |  Sun, X., et al. 2014. Arch Pharm Res. 37: 978-82. PMID: 24166709
  10. Structures of human acetylcholinesterase bound to dihydrotanshinone I and territrem B show peripheral site flexibility.  |  Cheung, J., et al. 2013. ACS Med Chem Lett. 4: 1091-6. PMID: 24900610
  11. Acetylcholinesterase promotes apoptosis in insect neurons.  |  Knorr, DY., et al. 2020. Apoptosis. 25: 730-746. PMID: 32761307
  12. Isolation, chemical structure, acute toxicity, and some physicochemical properties of territrem C from Aspergillus terreus.  |  Ling, KH., et al. 1984. Appl Environ Microbiol. 47: 98-100. PMID: 6546485
  13. Solvent systems for improved isolation and separation of territrems A and B.  |  Ling, KH., et al. 1982. Appl Environ Microbiol. 44: 860-3. PMID: 7149718
  14. Acetylcholinesterase inhibition by territrem B derivatives.  |  Peng, FC. 1995. J Nat Prod. 58: 857-62. PMID: 7673929
  15. Effects of territrem-B on cholinergic responses of snail neuron.  |  Arvanov, VL., et al. 1993. Neurosci Lett. 152: 69-71. PMID: 8100056

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Territrem B, 500 µg

sc-203293
500 µg
$148.00

Territrem B, 1 mg

sc-203293A
1 mg
$287.00