Date published: 2025-12-15

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UK-1 (CAS 151271-53-3)

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Alternate Names:
2′-(2-hydroxyphenyl)-[2,4′-bibenzoxazole]-4-carboxylic acid, methyl ester
Application:
UK-1 is an antibiotic and antifungal inhibitor of Topo II (topoisomerase II)
CAS Number:
151271-53-3
Molecular Weight:
386.4
Molecular Formula:
C22H14N2O5
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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UK-1, identified by CAS number 151271-53-3, is a benzoxazole-derived compound originally isolated from the actinomycete Streptomyces sp. This chemical is notable for its unique molecular structureUK-1, with the CAS number 151271-53-3, is an intriguing organic compound belonging to the benzoxazole family, initially isolated from the actinomycete Streptomyces sp. This molecule is characterized by a fused benzoxazole ring and a distinct polyketide side chain, which are critical for its biological activity. The primary mechanism of action of UK-1 involves its interaction with DNA, where it binds selectively to the minor groove of DNA. This binding affects the DNA′s double helix, influencing various DNA-mediated processes. In the field of research, UK-1 has been extensively used as a tool to study transcriptional regulation and DNA replication dynamics. By interfering with the normal function of DNA, researchers can investigate the role of minor groove binders in modulating genetic processes and how these interactions might be exploited to control biological outcomes. Moreover, the ability of UK-1 to bind DNA makes it a valuable compound for studying interactions between small molecules and nucleic acids, enhancing our understanding of molecular recognition processes that are fundamental to both basic biology and the development of novel research tools.


UK-1 (CAS 151271-53-3) References

  1. Evaluation of complexation of metal-mediated DNA-binding drugs to oligonucleotides via electrospray ionization mass spectrometry.  |  Reyzer, ML., et al. 2001. Nucleic Acids Res. 29: E103-3. PMID: 11691940
  2. Synthesis and evaluation of anticancer benzoxazoles and benzimidazoles related to UK-1.  |  Kumar, D., et al. 2002. Bioorg Med Chem. 10: 3997-4004. PMID: 12413851
  3. Critical structural motif for the catalytic inhibition of human topoisomerase II by UK-1 and analogs.  |  Wang, BB., et al. 2004. Bioorg Med Chem Lett. 14: 3221-6. PMID: 15149679
  4. Evaluation of complexes of DNA duplexes and novel benzoxazoles or benzimidazoles by electrospray ionization mass spectrometry.  |  Oehlers, L., et al. 2004. J Am Soc Mass Spectrom. 15: 1593-603. PMID: 15519226
  5. Synthesis, metal ion binding, and biological evaluation of new anticancer 2-(2'-hydroxyphenyl)benzoxazole analogs of UK-1.  |  McKee, ML. and Kerwin, SM. 2008. Bioorg Med Chem. 16: 1775-83. PMID: 18037301
  6. UK-1 and structural analogs are potent inhibitors of hepatitis C virus replication.  |  Ward, DN., et al. 2014. Bioorg Med Chem Lett. 24: 609-12. PMID: 24360997
  7. UK-1, a novel cytotoxic metabolite from Streptomyces sp. 517-02. II. Structural elucidation.  |  Shibata, K., et al. 1993. J Antibiot (Tokyo). 46: 1095-100. PMID: 8360105
  8. UK-1, a novel cytotoxic metabolite from Streptomyces sp. 517-02. IV. Antifungal action of methyl UK-1.  |  Ueki, M., et al. 1998. J Antibiot (Tokyo). 51: 883-5. PMID: 9820240
  9. The total synthesis of UK-1.  |  DeLuca, et al. 1997. Tetrahedron letters. 38.2: 199-202.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

UK-1, 250 µg

sc-202849
250 µg
$142.00

UK-1, 1 mg

sc-202849A
1 mg
$420.00