Date published: 2026-3-14

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5′-Deoxy-5′-methylthioadenosine (CAS 2457-80-9)

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Alternate Names:
5′-Deoxy-5′-(methylthio)-D-adenosine; 5′-(Methylthio)-5′-deoxyadenosine
Application:
5′-Deoxy-5′-methylthioadenosine is an endogenous methylthioadenosine phosphorylase substrate and potent inhibitor of PDE
CAS Number:
2457-80-9
Purity:
≥98%
Molecular Weight:
297.33
Molecular Formula:
C11H15N5O3S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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5′-Deoxy-5′-methylthioadenosine (MTA) may act to be a potent inhibitor of protein carboxylmethyltransferase and a naturally occurring co-product of polyamine biosynthesis. This nucleoside has been reported to potently inhibit the growth of certain cells by causing apoptosis. Treatment of cells with this compound has caused inhibition of cAMP phosphodiesterase which subsequently increases cAMP levels resulting in cell growth arrest. More specific studies demonstrate that 5′-Deoxy-5′-methylthioadenosine-treated cells display an arrest in the M phase of the cell cycle. Other data suggest that 5′-Deoxy-5′-methylthioadenosine displays agonist and antagonist characteristics towards adenosine A1-receptor (adenosine A1-R) and Adenosine A2-R, respectively. 5′-Deoxy-5′-methylthioadenosine is a substrate of 5′-methylthioadenosinephosphorylase (MTAP), an enzyme known to be expressed by tumor suppressor genes.


5′-Deoxy-5′-methylthioadenosine (CAS 2457-80-9) References

  1. Three-dimensional structure of a hyperthermophilic 5'-deoxy-5'-methylthioadenosine phosphorylase from Sulfolobus solfataricus.  |  Appleby, TC., et al. 2001. J Biol Chem. 276: 39232-42. PMID: 11489901
  2. Purification and characterization of 5'-deoxy-5'-methylthioadenosine (MTA) phosphorylase from human liver.  |  Toorchen, D. and Miller, RL. 1991. Biochem Pharmacol. 41: 2023-30. PMID: 1903946
  3. Down-regulation of methylthioadenosine phosphorylase (MTAP) induces progression of hepatocellular carcinoma via accumulation of 5'-deoxy-5'-methylthioadenosine (MTA).  |  Kirovski, G., et al. 2011. Am J Pathol. 178: 1145-52. PMID: 21356366
  4. Differential neuroprotective effects of 5'-deoxy-5'-methylthioadenosine.  |  Moreno, B., et al. 2014. PLoS One. 9: e90671. PMID: 24599318
  5. Suppressive effects of tumor cell-derived 5'-deoxy-5'-methylthioadenosine on human T cells.  |  Henrich, FC., et al. 2016. Oncoimmunology. 5: e1184802. PMID: 27622058
  6. Altered cell shapes in fibroblasts treated with 5'-deoxy-5'-methylthioadenosine: relation to morphogenesis of neural cells.  |  Smalheiser, NR. 1989. Brain Res Dev Brain Res. 45: 59-67. PMID: 2917413
  7. Human 5'-deoxy-5'-methylthioadenosine phosphorylase: kinetic studies and catalytic mechanism.  |  Zappia, V., et al. 1988. Adv Exp Med Biol. 250: 165-77. PMID: 3151224
  8. The Oncometabolite 5'-Deoxy-5'-Methylthioadenosine Blocks Multiple Signaling Pathways of NK Cell Activation.  |  Jacobs, B., et al. 2020. Front Immunol. 11: 2128. PMID: 33123121
  9. 5'-Deoxy-5'-methylthioadenosine: a nucleoside which differentiates between adenosine receptor types.  |  Munshi, R., et al. 1988. Biochem Pharmacol. 37: 2085-9. PMID: 3377811
  10. Mechanism of action of 5'-methylthioadenosine in S49 cells.  |  Riscoe, MK., et al. 1984. Biochem Pharmacol. 33: 3639-43. PMID: 6095857
  11. Inactivation of S-adenosylhomocysteine hydrolase by 5'-deoxy-5'-methylthioadenosine.  |  Ferro, AJ., et al. 1981. Biochem Biophys Res Commun. 100: 523-31. PMID: 6791639
  12. Trends in the biochemical pharmacology of 5'-deoxy-5'-methylthioadenosine.  |  Williams-Ashman, HG., et al. 1982. Biochem Pharmacol. 31: 277-88. PMID: 6803807
  13. NGF protects PC12 cells against ischemia by a mechanism that requires the N-kinase.  |  Boniece, IR. and Wagner, JA. 1995. J Neurosci Res. 40: 1-9. PMID: 7714916
  14. 5'-Deoxy-5'-methylthioadenosine phosphorylase and p16INK4 deficiency in multiple tumor cell lines.  |  Della Ragione, F., et al. 1995. Oncogene. 10: 827-33. PMID: 7898924
  15. Induction of apoptosis in leukemia U937 cells by 5'-deoxy-5'-methylthioadenosine, a potent inhibitor of protein carboxylmethyltransferase.  |  Lee, SH. and Cho, YD. 1998. Exp Cell Res. 240: 282-92. PMID: 9597001

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

5′-Deoxy-5′-methylthioadenosine, 50 mg

sc-202427
50 mg
$122.00