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Pladienolide B (CAS 445493-23-2)

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Alternate Names:
Pla-B; (4R,7R,8S,9E,11S,12S)-8-(acetyloxy)-4,7-dihydroxy-12-[(1E,3E,5S)-6-[(2R,3R)-3-[(1R,2S)-2-hydroxy-1-methylbutyl]-2-oxiranyl]-1,5-dimethyl-1,3-oxacyclododec-9-en-2-one
Application:
Pladienolide B is a highly potent splicing inhibitor of both hypoxia signals and cancer cell proliferation
CAS Number:
445493-23-2
Molecular Weight:
536.70
Molecular Formula:
C30H48O8
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Pladienolide B is a macrolide compound known for its role as a potent inhibitor of the spliceosome, a complex critical for the splicing of precursor messenger RNA in eukaryotic cells. It is of particular interest in molecular biology and genetics research, where it is used to study the mechanisms of mRNA splicing and to elucidate the consequences of spliceosome inhibition on gene expression. This compound has been employed to investigate the cellular processes that are impacted by altered splicing, which includes studies on cell cycle regulation and apoptosis. Through its action on the spliceosome, researchers have gained a better understanding of the complex interplay between splicing and various cellular pathways. The use of Pladienolide B in research helps to reveal the fundamental principles governing RNA biology and its implications in cellular function.


Pladienolide B (CAS 445493-23-2) References

  1. Targeting the spliceosome in chronic lymphocytic leukemia with the macrolides FD-895 and pladienolide-B.  |  Kashyap, MK., et al. 2015. Haematologica. 100: 945-54. PMID: 25862704
  2. Splicing function of mitotic regulators links R-loop-mediated DNA damage to tumor cell killing.  |  Wan, Y., et al. 2015. J Cell Biol. 209: 235-46. PMID: 25918225
  3. Splicing inhibition decreases phosphorylation level of Ser2 in Pol II CTD.  |  Koga, M., et al. 2015. Nucleic Acids Res. 43: 8258-67. PMID: 26202968
  4. Molecular identification of the dominant-negative, splicing isoform of the two-pore domain K(+) channel K(2P)5.1 in lymphoid cells and enhancement of its expression by splicing inhibition.  |  Endo, K., et al. 2015. Biochem Pharmacol. 98: 440-52. PMID: 26475531
  5. A Carbohydrate-Derived Splice Modulator.  |  Dhar, S., et al. 2016. J Am Chem Soc. 138: 5063-8. PMID: 27058259
  6. Selectivity in Small Molecule Splicing Modulation.  |  Kumar, D., et al. 2016. ACS Chem Biol. 11: 2716-2723. PMID: 27499047
  7. Pre-mRNA splicing repression triggers abiotic stress signaling in plants.  |  Ling, Y., et al. 2017. Plant J. 89: 291-309. PMID: 27664942
  8. Defective splicing of the background K+ channel K2P5.1 by the pre-mRNA splicing inhibitor, pladienolide B in lectin-activated mouse splenic CD4+ T cells.  |  Tagishi, K., et al. 2016. J Pharmacol Sci. 132: 205-209. PMID: 27865709
  9. Potential effect of spliceosome inhibition in small cell lung cancer irrespective of the MYC status.  |  Suda, K., et al. 2017. PLoS One. 12: e0172209. PMID: 28192473
  10. Pharmacological inhibition of the spliceosome subunit SF3b triggers exon junction complex-independent nonsense-mediated decay.  |  Carvalho, T., et al. 2017. J Cell Sci. 130: 1519-1531. PMID: 28302904
  11. Herboxidiene triggers splicing repression and abiotic stress responses in plants.  |  AlShareef, S., et al. 2017. BMC Genomics. 18: 260. PMID: 28347276
  12. SF3B1 is a stress-sensitive splicing factor that regulates both HSF1 concentration and activity.  |  Kim Guisbert, KS. and Guisbert, E. 2017. PLoS One. 12: e0176382. PMID: 28445500
  13. CRISPR/Cas9-mediated target validation of the splicing inhibitor Pladienolide B.  |  Aouida, M., et al. 2016. Biochim Open. 3: 72-75. PMID: 29450134
  14. Structural Basis of Splicing Modulation by Antitumor Macrolide Compounds.  |  Cretu, C., et al. 2018. Mol Cell. 70: 265-273.e8. PMID: 29656923

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Pladienolide B, 0.5 mg

sc-391691
0.5 mg
$290.00

Pladienolide B, 5 mg

sc-391691E
5 mg
$2781.00

Pladienolide B, 10 mg

sc-391691B
10 mg
$5572.00

Pladienolide B, 20 mg

sc-391691A
20 mg
$10815.00

Pladienolide B, 50 mg

sc-391691C
50 mg
$25000.00

Pladienolide B, 100 mg

sc-391691D
100 mg
$65000.00

What is the suggested reagent for solution of PB, DMSO or water?

Asked by: jackson 2
Soluble in ethanol, methanol, DMSO, DMF, and water (poorly).
Answered by: Technical Support
Date published: 2019-01-25

What is the solubility of the Pla-B in DMSO, and what stock concentration will that give?

Asked by: ErikP693
Thank you for your question. It is soluble in DMSO to 1 mg/ml. Please contact Technical Service by phone, (800)-457-3801 option 2, email <scbt@scbt.com>, or by live chat directly on our website, www.scbt.com if you have any further questions.
Answered by: Tech Service
Date published: 2018-01-09

Hi, What is the current available stock of this product (pladienolide B) and in stock bulk availability. Thanks, Jon

Asked by: JonS099
Thank you for your question. Please contact our Special Orders Department to inquire about the possibility of a bulk order for this biochemical. Email us at specialorders@scbt.com. Or you can call us directly at (800) 457-3801 option 2.
Answered by: Technical Service
Date published: 2017-07-14

What is the country of origin?

Asked by: SCM4
The country of origin is lot specific. You may request the Certificate of Analysis for a particular lot to determine the country of origin for that lot.
Answered by: Tech Service 11
Date published: 2017-06-05
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Rated 5 out of 5 by from Great productI highly recommend this product. We used it on cultured human cells and first validated its effects on mRNA splicing described in previous publications. Also, it is a very potent compound, so many experiments can be done with one vial.
Date published: 2017-11-23
Rated 5 out of 5 by from KogaKoga, M. et al. (PubMed 26202968) found that Pladienolide B, a highly potent inhibitor of both hypoxia signals and cancer cell proliferation, inhibited splicing of mRNA by decreasing phospho-Ser2 levels. -SCBT Publication Review
Date published: 2015-01-08
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Pladienolide B is rated 5.0 out of 5 by 2.
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