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Key Documents

E1286

Sigma-Aldrich

Eeyarestatin I

≥98% (HPLC)

Synonym(s):

3-(4-Chlorophenyl)-4-[[[(4-chlorophenyl)amino]carbonyl]hydroxyamino]-5,5-dimethyl-2-oxo-1-imidazolidineacetic acid 2-[3-(5-nitro-2-furanyl)-2-propen-1-ylidene]hydrazide

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About This Item

Empirical Formula (Hill Notation):
C27H25Cl2N7O7
CAS Number:
412960-54-4
Molecular Weight:
630.44
UNSPSC Code:
12352204
NACRES:
NA.77

biological source

synthetic (organic)

Quality Level

200

Assay

≥98% (HPLC)

form

powder

storage condition

desiccated

solubility

DMSO: 5 mg/mL

storage temp.

2-8°C

InChI

1S/C27H25Cl2N7O7/c1-27(2)24(35(40)25(38)31-19-9-5-17(28)6-10-19)34(20-11-7-18(29)8-12-20)26(39)33(27)16-22(37)32-30-15-3-4-21-13-14-23(43-21)36(41)42/h3-15,24,40H,16H2,1-2H3,(H,31,38)(H,32,37)

InChI key

JTUXTPWYZXWOIB-UHFFFAOYSA-N

Biochem/physiol Actions

Eeyarestatin I is a potent inhibitor of endoplasmic reticulum associated protein degradation (ERAD). Specifically targets the p97-associated deubiquinating process (PAD) and inhibits ataxin-3 (atx3)-dependent deubiquitination. Also inhibits Sec61-mediated protein translocation at the ER. Displays cytotoxic activity preferentially against cancer cells; induces cell death via the proapoptotic protein NOXA.
Eeyarestatin I or Eer1 promotes transcriptional activation of the pro-apoptotic protein NOXA by inducing activation of the NOXA transcription factors ATF3 and ATF4 and by inhibiting the degradation of histone H2A by blocking its ubiquitination.

Other Notes

This product is a mixture of E/Z imine isomers

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Qiuyan Wang et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(7), 2200-2205 (2009-01-24)
The ubiquitin-proteasome system has recently emerged as a major target for drug development in cancer therapy. The proteasome inhibitor bortezomib has clinical activity in multiple myeloma and mantle cell lymphoma. Here we report that Eeyarestatin I (EerI), a chemical inhibitor
Garrett E Berry et al.
The Journal of biological chemistry, 291(2), 939-947 (2015-11-04)
Intracellular trafficking of viruses can be influenced by a variety of inter-connected cellular sorting and degradation pathways involving endo-lysosomal vesicles, the ubiquitin-proteasome system, and autophagy-based or endoplasmic reticulum-associated machinery. In the case of recombinant adeno-associated viruses (AAV), proteasome inhibitors are
Jose Lora et al.
The Journal of biological chemistry, 296, 100733-100733 (2021-05-07)
A disintegrin and metalloprotease 17 (ADAM17) is a cell-surface metalloprotease that serves as the principle sheddase for tumor necrosis factor α (TNFα), interleukin-6 receptor (IL-6R), and several ligands of the epidermal growth factor receptor (EGFR), regulating these crucial signaling pathways.
Avantika Gupta et al.
eLife, 9 (2020-06-12)
The transcription factor FoxO has been shown to block proliferation and progression in mTORC1-driven tumorigenesis but the picture of the relevant FoxO target genes remains incomplete. Here, we employed RNA-seq profiling on single clones isolated using laser capture microdissection from
Tatyana Dubnikov et al.
Journal of cell science, 129(19), 3635-3647 (2016-08-24)
Limited detoxification capacity often directs aggregation-prone, potentially hazardous, misfolded proteins to be deposited in designated cytosolic compartments known as 'aggresomes'. The roles of aggresomes as cellular quality control centers, and the cellular origin of the deposits contained within these structures
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