Date published: 2026-2-1

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Myriocin (ISP-1) (CAS 35891-70-4)

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Alternate Names:
Thermozymocidin;(2S,3R,4R,6E)-2-Amino-3,4-dihydroxy-2-(hydroxymethyl)-14-oxo-6-eicosenoic acid
Application:
Myriocin (ISP-1) is an inhibitor of sphingolipid biosynthesis with immunosuppressive properties
CAS Number:
35891-70-4
Purity:
≥95%
Molecular Weight:
401.54
Molecular Formula:
C21H39NO6
Supplemental Information:
This is 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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Myriocin, also known as ISP-1, is a compound extensively studied in biological research due to its potent inhibitory effect on serine palmitoyltransferase, the key enzyme in sphingolipid biosynthesis. Its role in sphingolipid metabolism makes it useful in cellular studies aimed at understanding the complex signaling pathways influenced by sphingolipids. Myriocin is also investigated for its impact on the immune system, particularly in relation to the proliferation of various immune cells through the modulation of lipid-mediated signaling. In the field of microbiology, Myriocin is used to explore fungal physiology and biochemistry, as it was originally found in the thermophilic fungus Mycelia sterilia. Environmental and agricultural research utilize Myriocin to study its presence and degradation in ecosystems, and its potential effects on microbial communities in soil and plant systems.


Myriocin (ISP-1) (CAS 35891-70-4) References

  1. Serine palmitoyltransferase inhibitor suppresses HCV replication in a mouse model.  |  Umehara, T., et al. 2006. Biochem Biophys Res Commun. 346: 67-73. PMID: 16750511
  2. Intratracheal myriocin enhances allergen-induced Th2 inflammation and airway hyper-responsiveness.  |  Edukulla, R., et al. 2016. Immun Inflamm Dis. 4: 248-62. PMID: 27621809
  3. Novel ophthalmic formulation of myriocin: implications in retinitis pigmentosa.  |  Platania, CBM., et al. 2019. Drug Deliv. 26: 237-243. PMID: 30883241
  4. Myriocin Effect on Tvrm4 Retina, an Autosomal Dominant Pattern of Retinitis Pigmentosa.  |  Piano, I., et al. 2020. Front Neurosci. 14: 372. PMID: 32435178
  5. Myriocin modulates the altered lipid metabolism and storage in cystic fibrosis.  |  Signorelli, P., et al. 2021. Cell Signal. 81: 109928. PMID: 33482299
  6. Myriocin Treatment Reverses Alcohol-Induced Alterations in Polyunsaturated Fatty Acid-Containing Phospholipid Expression in the Liver.  |  Yalcin, EB., et al. 2022. Nutr Metab Insights. 15: 11786388221082012. PMID: 35250275
  7. Lipidomics Analysis Reveals a Protective Effect of Myriocin on Cerebral Ischemia/Reperfusion Model Rats.  |  Wang, T., et al. 2022. J Mol Neurosci. 72: 1846-1858. PMID: 35776315
  8. Inhibitory Effects of Myriocin on Non-Enzymatic Glycation of Bovine Serum Albumin.  |  He, L., et al. 2022. Molecules. 27: PMID: 36296589
  9. Myriocin enhances the antifungal activity of fluconazole by blocking the membrane localization of the efflux pump Cdr1.  |  Wang, H., et al. 2022. Front Pharmacol. 13: 1101553. PMID: 36618949
  10. Insulin-regulated serine and lipid metabolism drive peripheral neuropathy.  |  Handzlik, MK., et al. 2023. Nature. 614: 118-124. PMID: 36697822
  11. Therapeutic Effects of Myriocin in Experimental Alcohol-Related Neurobehavioral Dysfunction and Frontal Lobe White Matter Biochemical Pathology.  |  Homans, C., et al. 2022. J Behav Brain Sci. 12: 23-42. PMID: 36815096
  12. Serine palmitoyltransferase is the primary target of a sphingosine-like immunosuppressant, ISP-1/myriocin.  |  Miyake, Y., et al. 1995. Biochem Biophys Res Commun. 211: 396-403. PMID: 7794249
  13. Fungal metabolites. Part 11. A potent immunosuppressive activity found in Isaria sinclairii metabolite.  |  Fujita, T., et al. 1994. J Antibiot (Tokyo). 47: 208-15. PMID: 8150717
  14. Dual roles of sphingolipids in signaling of the escape from and onset of apoptosis in a mouse cytotoxic T-cell line, CTLL-2.  |  Nakamura, S., et al. 1996. J Biol Chem. 271: 1255-7. PMID: 8576106
  15. Complete removal of sphingolipids from the plasma membrane disrupts cell to substratum adhesion of mouse melanoma cells.  |  Hidari KIPJ, ., et al. 1996. J Biol Chem. 271: 14636-41. PMID: 8662871

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Myriocin (ISP-1), 10 mg

sc-201397
10 mg
$150.00

Hello, I have some questions 1. What is recommended preparation method (ie. solvent, dosage, concentration,..) ? 2. Can I stock the myriocin solution after initial preparation for later usage ?

Asked by: Kadir
Thank you for contacting Santa Cruz Biotechnology. For assistance please contact technical service. Please email scbt@scbt.com or call 800-457-3801.
Answered by: BlakeJ
Date published: 2025-03-27

How do you authenticate the activity of myriocin?

Asked by: Fahu
Thank you for your question. We do not test in-house the activity of this compound, Myriocin (ISP-1) (CAS 35891-70-4). However, below are some references that may contain relevant information to help address your question. Hanada, K., et al. 2000. Biochem. Pharmacol. 59, 1211. Chen, J.K., et al. 1999. Chem. Biol. 6, 221. Hidari, K.I.P.J., et al. 1996. J. Biol. Chem. 271, 14636. Nakamura, S., et al. 1996. J. Biol. Chem. 271, 1255. Mikaye, Y., et al. 1995. Biochem. Biophys. Res. Commun. 211, 396. Fujita, T., et al. 1994. J. Antibiot. 47, 208.
Answered by: Technical Support
Date published: 2019-03-06
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Rated 4 out of 5 by from Compound solubilityThe solubilisation method should be clearer. Indicating that the compound is thermosoluble would make it easier to understand the importance of 100°C for good solubility of the compound. The technical team responded very quickly to my questions.
Date published: 2024-10-02
Rated 5 out of 5 by from S ghyS ghy, . et al. (PubMed 26238178) disrupted lipid rafts by cleaving sphingomyelin with sphingomyelinase, cholesterol depletion with methyl -cyclodextrin and ganglioside breakdown with Myriocin (ISP-1), an inhibitor of sphingolipid biosynthesis with immunosuppressive properties. -SCBT Publication Review
Date published: 2015-03-16
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Myriocin (ISP-1) is rated 4.5 out of 5 by 2.
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