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Key Documents

412512

Sigma-Aldrich

IRE1抑制剂 III, 4μ8C

IRE1 Inhibitor III, CAS 14003-96-4, is a cell-permeable. Covalent inhibitor of IRE1 RNase activity (IC₅₀ = 550 and 45 nM, respectively, with 0 & 16 min preincubation in RNA cleavage assays).

别名:

IRE1抑制剂 III, 4μ8C

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About This Item

经验公式(希尔记法):
C11H8O4
CAS号:
分子量:
204.18
MDL號碼:
分類程式碼代碼:
12352200
NACRES:
NA.28

品質等級

化驗

≥95% (HPLC)

形狀

powder

製造商/商標名

Calbiochem®

儲存條件

OK to freeze
protect from light

顏色

yellow

溶解度

DMSO: 25 mg/mL

運輸包裝

ambient

儲存溫度

2-8°C

SMILES 字串

O=C(C=C1C)OC2=C1C=CC(O)=C2C=O

InChI

1S/C11H8O4/c1-6-4-10(14)15-11-7(6)2-3-9(13)8(11)5-12/h2-5,13H,1H3

InChI 密鑰

RTHHSXOVIJWFQP-UHFFFAOYSA-N

一般說明

一种细胞可渗透的香豆素羟基醛化合物,通过席夫碱的形成共价靶向IRE1 Lys907,以时间和剂量依赖性方式抑制IRE1 RNase活性(在基于FRET的RNA裂解试验中进行0、2、4、8、16分钟的药物预孵育,IC50分别为550、230、180、100和45 nM),可有效防止ER应激诱导的位点特异性mRNA剪接以及衣霉素(目录号654380)治疗后MEF培养物中RIDD(受调节的IRE1依赖性降解)mRNA降解(针对Xbp1剪接和Scara3降解,IC50分别为6.9和4.1 µM)。还证明可抑制大鼠AR42J肿瘤腺泡胰腺细胞中的ER能力扩展(有效浓度为32 µM)和淀粉酶分泌(IC50<2 µM) upon stress induction by Dexamethasone (Cat. No. 265005)治疗。结构分析表明,IRE1天然构象中水对Lys907的可及性降低,这说明了Lys907席夫碱形成的异常稳定性,并形成了4μ8C和STF083010(目录编号412510)选择性抑制IRE1 RNase的基础。尽管在没有ADP的情况下,4μ8C(而非STF083010)也显示出通过与IRE1 Lys599形成席夫碱来抑制IRE1自磷酸化,但细胞核苷酸阻止4μ8C靶向IRE1 Lys599并在细胞内抑制IRE1激酶活性。
一种细胞可渗透的香豆素邻羟基醛,通过席夫碱的形成共价靶向IRE1 Lys907,以时间和剂量依赖性方式抑制IRE1 RNase活性(在RNA裂解试验中进行0和16分钟的药物预孵育,IC50分别为550和45 nM),可有效防止ER应激诱导的位点特异性mRNA剪接以及衣霉素(目录号654380)治疗后MEF培养物中RIDD(受调节的IRE1依赖性降解)mRNA降解(针对Xbp1剪接和Scara3降解,IC50分别为6.9和4.1 µM)。与STF083010(目录编号412510)相比,在无细胞测定中,4μ8C还显示出在不存在ADP的情况下通过与IRE1 Lys599形成席夫碱来抑制IRE1自磷酸化,但是细胞核苷酸阻止4μ8C在细胞内靶向IRE1 Lys599。

生化/生理作用

主要靶标
IRE1
可逆性:是
细胞可渗透性:是

包裝

用惰性气体包装

警告

毒性:标准处理(A)

重構

复溶后,等分并冷冻保存(-20°C)。储备液可稳定保存6个月。

其他說明

Cross, B.C.S., et al. 2012.Proc.Natl. acad.Sci. USA109, E869.

法律資訊

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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Aparajita Madhavan et al.
Nature communications, 13(1), 608-608 (2022-02-03)
In obesity, signaling through the IRE1 arm of the unfolded protein response exerts both protective and harmful effects. Overexpression of the IRE1-regulated transcription factor XBP1s in liver or fat protects against obesity-linked metabolic deterioration. However, hyperactivation of IRE1 engages regulated IRE1-dependent
Rohit B Sharma et al.
The Journal of biological chemistry, 295(41), 14164-14177 (2020-08-14)
Success or failure of pancreatic beta cell adaptation to ER stress is a determinant of diabetes susceptibility. The ATF6 and IRE1/XBP1 pathways are separate ER stress-response effectors important to beta cell health and function. ATF6α. and XBP1 direct overlapping transcriptional
Rachel E Carlisle et al.
Cell death & disease, 12(10), 921-921 (2021-10-10)
Chronic kidney disease (CKD) is characterized by the gradual loss of renal function and is a major public health concern. Risk factors for CKD include hypertension and proteinuria, both of which are associated with endoplasmic reticulum (ER) stress. ER stress-induced
José P Guirao-Abad et al.
mSphere, 5(5) (2020-10-23)
The unfolded protein response (UPR) is a signaling network that maintains homeostasis of the endoplasmic reticulum (ER). In the human-pathogenic fungus Aspergillus fumigatus, the UPR is initiated by activation of an endoribonuclease (RNase) domain in the ER transmembrane stress sensor
Michael J Grey et al.
The Journal of clinical investigation, 132(17) (2022-06-22)
Epithelial cells lining mucosal surfaces of the gastrointestinal and respiratory tracts uniquely express ERN2/IRE1β, a paralogue of the most evolutionarily conserved endoplasmic reticulum stress sensor, ERN1/IRE1α. How ERN2 functions at the host-environment interface and why a second paralogue evolved remain

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