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Cat. Number
10-1412
Chemical Name
Importazole
CAS Number
662163-81-7
Mol. Formula
C20H22N4
Mol. Weight
318.43
Qty 1
5mg
Qty 2
25mg
Appearance
Off-white solid
Application Notes
98% by TLC NMR (Conforms)
Synonym
IPZ,N-(1-Phenylethyl)-2-(pyrrolidin-1-yl)quinazolin-4-amine
Solubility
Soluble in DMSO (up to 10 mg/ml).
Storage condition
RT
Stability
Stable for 1 year as supplied. Solutions in DMSO may be stored at -20° for up to 3 months.
References

Importazole (662163-81-7) specifically inhibits importin-β-mediated nuclear import without disrupting transportin-mediated nuclear import or CRM1-mediated nuclear export.1 When added to cells during mitosis, importazole impairs the release of an importin-β cargo probe and causes defects in spindle assembly. Disrupts proteostasis and triggers infolded protein response-mediated apoptosis.5 Inhibition of importin-β function is most likely mediated by blocking its interaction with RanGTP. Importazole is an important new tool to probe the function of the importin-β/RanGTP pathway.2-4 Cell permeable.

References/Citations
1) Soderholm et al. (2011), Importazole, a small molecule inhibitor of the transport receptor importin-β; ACS Chem. Biol., 6 700
2) Bird et al. (2013), RanGTP and CLASP1 cooperate to position the mitotic spindle; Mol. Biol. Cell,24 2506
3) Bai et al. (2014), Importin β-dependent nuclear import of TopBP1 in ATR-Chk1 checkpoint in Xenopus egg extracts; Cell Signal., 26 857
4) Yan et al. (2015), Importin β1 mediates nuclear factor-κB signal transduction into the nuclei of myeloma cells and affects their proliferation and apoptosis; Cell Signal., 27 851
5) Zhu et al. (2018), KPNB1 inhibition disrupts proteostasis and triggers unfolded protein response-mediated apoptosis in glioblastoma cells; Oncogene 37 2936

Focus Biomolecules supplier, chemical structure of Importazole | Blocks importin-β-mediated nuclear import | CAS 662163-81-7

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