Date published: 2026-8-9

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5-methoxycarbonylmethyl-2-thiouridine (CAS 20299-15-4)

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CAS Number:
20299-15-4
Molecular Weight:
332.33
Molecular Formula:
C12H16N2O7S
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-(Methoxycarbonylmethyl)-2-thiouridine or Mcm5s2U,, is a thiourea derivative of uridine present in RNA and DNA. It plays a role in altering the structure of RNA and DNA, enabling the manipulation of gene expression and regulation. Moreover, 5-methoxycarbonylmethyl-2-thiouridine has been utilized for modifying proteins and peptides, facilitating the adjustment of their structure and activity. This modification process involves the formation of covalent bonds between 5-methoxycarbonylmethyl-2-thiouridine and various biological molecules such as proteins, peptides, RNA, and DNA. These covalent bonds ultimately lead to the modification of the target molecule′s structure and activity.


5-methoxycarbonylmethyl-2-thiouridine (CAS 20299-15-4) References

  1. Kluyveromyces lactis gamma-toxin, a ribonuclease that recognizes the anticodon stem loop of tRNA.  |  Lu, J., et al. 2008. Nucleic Acids Res. 36: 1072-80. PMID: 18096622
  2. A genome-wide screen identifies genes required for formation of the wobble nucleoside 5-methoxycarbonylmethyl-2-thiouridine in Saccharomyces cerevisiae.  |  Huang, B., et al. 2008. RNA. 14: 2183-94. PMID: 18755837
  3. Mechanistic characterization of the sulfur-relay system for eukaryotic 2-thiouridine biogenesis at tRNA wobble positions.  |  Noma, A., et al. 2009. Nucleic Acids Res. 37: 1335-52. PMID: 19151091
  4. Functional recognition of the modified human tRNALys3(UUU) anticodon domain by HIV's nucleocapsid protein and a peptide mimic.  |  Graham, WD., et al. 2011. J Mol Biol. 410: 698-715. PMID: 21762809
  5. Human tRNA(Lys3)(UUU) is pre-structured by natural modifications for cognate and wobble codon binding through keto-enol tautomerism.  |  Vendeix, FA., et al. 2012. J Mol Biol. 416: 467-85. PMID: 22227389
  6. Translational infidelity-induced protein stress results from a deficiency in Trm9-catalyzed tRNA modifications.  |  Patil, A., et al. 2012. RNA Biol. 9: 990-1001. PMID: 22832247
  7. Familial dysautonomia (FD) patients have reduced levels of the modified wobble nucleoside mcm(5)s(2)U in tRNA.  |  Karlsborn, T., et al. 2014. Biochem Biophys Res Commun. 454: 441-5. PMID: 25450681
  8. The role of wobble uridine modifications in +1 translational frameshifting in eukaryotes.  |  Tükenmez, H., et al. 2015. Nucleic Acids Res. 43: 9489-99. PMID: 26283182
  9. Independent suppression of ribosomal +1 frameshifts by different tRNA anticodon loop modifications.  |  Klassen, R., et al. 2017. RNA Biol. 14: 1252-1259. PMID: 27937809
  10. The Profile and Dynamics of RNA Modifications in Animals.  |  van Delft, P., et al. 2017. Chembiochem. 18: 979-984. PMID: 28449301
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  12. tRNA Modification Detection Using Graphene Nanopores: A Simulation Study.  |  Onanuga, K., et al. 2017. Biomolecules. 7: PMID: 32962315
  13. Development of a highly sensitive method for the quantitative analysis of modified nucleosides using UHPLC-UniSpray-MS/MS.  |  Kogaki, T., et al. 2021. J Pharm Biomed Anal. 197: 113943. PMID: 33601155
  14. Monitoring the 5-Methoxycarbonylmethyl-2-Thiouridine (mcm5s2U) Modification Utilizing the Gamma-Toxin Endonuclease.  |  Lentini, JM. and Fu, D. 2021. Methods Mol Biol. 2298: 197-216. PMID: 34085247
  15. HITS-CLIP analysis of human ALKBH8 reveals interactions with fully processed substrate tRNAs and with specific noncoding RNAs.  |  Cavallin, I., et al. 2022. RNA. 28: 1568-1581. PMID: 36192131

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

5-methoxycarbonylmethyl-2-thiouridine, 5 mg

sc-500886
5 mg
$397.00