IRE1 Antibody - #DF7709

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产品: IRE1 抗体
货号: DF7709
描述: Rabbit polyclonal antibody to IRE1
应用: WB IHC IF/ICC
反应: Human, Mouse, Rat
预测: Pig, Bovine, Horse, Sheep, Rabbit, Dog, Chicken, Xenopus
分子量: 110 kDa; 110kD(Calculated).
蛋白号: O75460
RRID: AB_2841178

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   规格 价格 库存
 50ul RMB¥ 1250 现货
 100ul RMB¥ 2300 现货
 200ul RMB¥ 3000 现货

货期: 当天发货

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实验方案
WB Handbook
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IF/ICC Protocol

产品描述

来源:
Rabbit
应用:
WB 1:1000-3000, IF/ICC 1:200-1:500, IHC 1:50-1:200
*The optimal dilutions should be determined by the end user.
*Tips:

WB: 适用于变性蛋白样本的免疫印迹检测. IHC: 适用于组织样本的石蜡(IHC-p)或冰冻(IHC-f)切片样本的免疫组化/荧光检测. IF/ICC: 适用于细胞样本的荧光检测. ELISA(peptide): 适用于抗原肽的ELISA检测.

反应:
Human,Mouse,Rat
预测:
Pig(100%), Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Chicken(100%), Xenopus(86%)
克隆:
Polyclonal
特异性:
IRE1 Antibody detects endogenous levels of total IRE1.
RRID:
AB_2841178
引用格式: Affinity Biosciences Cat# DF7709, RRID:AB_2841178.
偶联:
Unconjugated.
纯化:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
保存:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
别名:

展开/折叠

Endoplasmic reticulum (ER) to nucleus signalling 1; Endoplasmic reticulum to nucleus signaling 1; Endoplasmic reticulum-to-nucleus signaling 1; Endoribonuclease; ER to nucleus signaling 1; ERN 1; Ern1; ERN1_HUMAN; hIRE 1p; hIRE1p; Inositol requiring 1; Inositol requiring 1, S. cerevisiae, homolog of; Inositol requiring enzyme 1, S. cerevisiae, homolog of; Inositol requiring protein 1; inositol-requiring enzyme 1; Inositol-requiring protein 1; IRE 1; IRE 1a; IRE 1P; Ire1 alpha; Ire1-alpha; IRE1a; Ire1alpha; IRE1P; MGC163277; MGC163279; Protein kinase/endoribonuclease; RGD1559716; Serine/threonine protein kinase/endoribonuclease IRE1;

抗原和靶标

免疫原:
Uniprot:

O75460(ERN1_HUMAN) >>Visit HPA database.

基因/基因ID:
ERN1(2081)
表达:
O75460 ERN1_HUMAN:

Ubiquitously expressed. High levels observed in pancreatic tissue.

序列:
MPARRLLLLLTLLLPGLGIFGSTSTVTLPETLLFVSTLDGSLHAVSKRTGSIKWTLKEDPVLQVPTHVEEPAFLPDPNDGSLYTLGSKNNEGLTKLPFTIPELVQASPCRSSDGILYMGKKQDIWYVIDLLTGEKQQTLSSAFADSLCPSTSLLYLGRTEYTITMYDTKTRELRWNATYFDYAASLPEDDVDYKMSHFVSNGDGLVVTVDSESGDVLWIQNYASPVVAFYVWQREGLRKVMHINVAVETLRYLTFMSGEVGRITKWKYPFPKETEAKSKLTPTLYVGKYSTSLYASPSMVHEGVAVVPRGSTLPLLEGPQTDGVTIGDKGECVITPSTDVKFDPGLKSKNKLNYLRNYWLLIGHHETPLSASTKMLERFPNNLPKHRENVIPADSEKKSFEEVINLVDQTSENAPTTVSRDVEEKPAHAPARPEAPVDSMLKDMATIILSTFLLIGWVAFIITYPLSMHQQQQLQHQQFQKELEKIQLLQQQQQQLPFHPPGDTAQDGELLDTSGPYSESSGTSSPSTSPRASNHSLCSGSSASKAGSSPSLEQDDGDEETSVVIVGKISFCPKDVLGHGAEGTIVYRGMFDNRDVAVKRILPECFSFADREVQLLRESDEHPNVIRYFCTEKDRQFQYIAIELCAATLQEYVEQKDFAHLGLEPITLLQQTTSGLAHLHSLNIVHRDLKPHNILISMPNAHGKIKAMISDFGLCKKLAVGRHSFSRRSGVPGTEGWIAPEMLSEDCKENPTYTVDIFSAGCVFYYVISEGSHPFGKSLQRQANILLGACSLDCLHPEKHEDVIARELIEKMIAMDPQKRPSAKHVLKHPFFWSLEKQLQFFQDVSDRIEKESLDGPIVKQLERGGRAVVKMDWRENITVPLQTDLRKFRTYKGGSVRDLLRAMRNKKHHYRELPAEVRETLGSLPDDFVCYFTSRFPHLLAHTYRAMELCSHERLFQPYYFHEPPEPQPPVTPDAL

种属预测

种属预测:

score>80的预测可信度较高，可尝试用于WB检测。*预测模型主要基于免疫原序列比对，结果仅作参考，不作为质保凭据。

Species
Results
Score
Pig
100
Horse
100
Bovine
100
Sheep
100
Dog
100
Chicken
100
Rabbit
100
Xenopus
86
Zebrafish
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

翻译修饰 - O75460 作为底物

Site PTM Type Enzyme
T49 Phosphorylation
K88 Ubiquitination
K95 Ubiquitination
T132 Phosphorylation
Y161 Phosphorylation
Y166 Phosphorylation
Y179 Phosphorylation
T283 Phosphorylation
Y289 Phosphorylation
K374 Acetylation
K374 Ubiquitination
K485 Ubiquitination
S533 Phosphorylation
S536 Phosphorylation
S544 Phosphorylation
S548 Phosphorylation
S551 Phosphorylation
Y628 Phosphorylation O75460 (ERN1)
K633 Ubiquitination
K706 Ubiquitination
S724 Phosphorylation O75460 (ERN1)
S726 Phosphorylation
S729 Phosphorylation
K851 Ubiquitination
K860 Ubiquitination
T973 Phosphorylation

翻译修饰 - O75460 作为激酶

Substrate Site Source
O75460 (ERN1) Y628 Uniprot
O75460 (ERN1) S724 Uniprot

研究背景

功能:

Serine/threonine-protein kinase and endoribonuclease that acts as a key sensor for the endoplasmic reticulum unfolded protein response (UPR). In unstressed cells, the endoplasmic reticulum luminal domain is maintained in its inactive monomeric state by binding to the endoplasmic reticulum chaperone HSPA5/BiP. Accumulation of misfolded protein in the endoplasmic reticulum causes release of HSPA5/BiP, allowing the luminal domain to homodimerize, promoting autophosphorylation of the kinase domain and subsequent activation of the endoribonuclease activity. The endoribonuclease activity is specific for XBP1 mRNA and excises 26 nucleotides from XBP1 mRNA. The resulting spliced transcript of XBP1 encodes a transcriptional activator protein that up-regulates expression of UPR target genes. Acts as an upstream signal for ER stress-induced GORASP2-mediated unconventional (ER/Golgi-independent) trafficking of CFTR to cell membrane by modulating the expression and localization of SEC16A.

翻译修饰:

Autophosphorylated following homodimerization. Autophosphorylation promotes activation of the endoribonuclease domain.

ADP-ribosylated by PARP16 upon ER stress, which increases both kinase and endonuclease activities.

细胞定位:

Endoplasmic reticulum membrane>Single-pass type I membrane protein.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
组织特异性:

Ubiquitously expressed. High levels observed in pancreatic tissue.

亚基结构:

Monomer. Homodimer; disulfide-linked; homodimerization takes place in response to endoplasmic reticulum stress and promotes activation of the kinase and endoribonuclease activities. Dimer formation is driven by hydrophobic interactions within the N-terminal luminal domains and stabilized by disulfide bridges. Interacts (via the luminal region) with DNAJB9/ERdj4; interaction takes place in unstressed cells and promotes recruitment of HSPA5/BiP. Interacts (via the luminal region) with HSPA5/BiP; HSPA5/BiP is a negative regulator of the unfolded protein response (UPR) that prevents homodimerization of ERN1/IRE1 and subsequent activation of the protein. Interacts with PDIA6, a negative regulator of the UPR; the interaction is direct and disrupts homodimerization. Interacts with DAB2IP (via PH domain); the interaction occurs in a endoplasmic reticulum stress-induced dependent manner and is required for subsequent recruitment of TRAF2 to ERN1/IRE1 (By similarity). Interacts with TAOK3 and TRAF2. Interacts with RNF13.

蛋白家族:

Belongs to the protein kinase superfamily. Ser/Thr protein kinase family.

研究领域

· Cellular Processes > Transport and catabolism > Autophagy - animal.   (View pathway)

· Cellular Processes > Cell growth and death > Apoptosis.   (View pathway)

· Genetic Information Processing > Folding, sorting and degradation > Protein processing in endoplasmic reticulum.   (View pathway)

· Human Diseases > Endocrine and metabolic diseases > Non-alcoholic fatty liver disease (NAFLD).

· Human Diseases > Neurodegenerative diseases > Alzheimer's disease.

文献引用

1). Upregulation of BCL-2 by acridone derivative through gene promoter i-motif for alleviating liver damage of NAFLD/NASH. NUCLEIC ACIDS RESEARCH, 2020 (PubMed: 32710621) [IF=14.9]

Application: WB    Species: mouse    Sample: liver

Figure 7. Effect of A22 on ameliorating apoptosis, ER stress, inflammation, metabolic syndrome, and fibrogenesis in HF diet-fed mice. (A) Effect of A22 on BCL-2 gene transcription. (B) Effect of A22 on BAX gene transcription. (C) Effect of A22 on expressions of apoptosis-related proteins in liver. The extracted proteins from the liver were immunoblotted with specific antibodies, and quantified based on the loading control of ACTIN. (D) Effect of A22 on ER stress. The UPR proteins (IRE-1, PERK, elF-2 and CHOP) were analyzed by using western Blot. (E) Effect of A22 on expressions of inflammatory factors. (F) Effect of A22 on expressions of fibrogenic proteins.
2). SelK promotes glioblastoma cell proliferation by inhibiting β-TrCP1 mediated ubiquitin-dependent degradation of CDK4. Journal of experimental & clinical cancer research : CR, 2024 (PubMed: 39155374) [IF=11.3]

Application: WB    Species: Human    Sample: LN229 and U251 cells

Fig. 8. Knockdown of SelK activates ER stress by releasing calcium through IP3R channels, thereby down-regulating SKP2. A, BSKP2 mRNA levels determined by qPCR. C Detection of major markers of endoplasmic reticulum stress (Western blot). D SKP2 protein expression was detected in LN229 (Nonsense) and U251 (Nonsense) cells after treatment with 3 μM TM for 0, 6, 12 and 24 h. E The protein expression of SKP2 and GRP78 were detected after treatment of LN229 (shSelK#1), LN229 (shSelK#2), U251 (shSelK#1) and U251 (shSelK#2) cells with 1 mM 4-PBA for 12 h. F LN229 (Nonsense) and U251 (Nonsense) cells were treated with 3 μM TM for 0, 6, 12, and 24 h, and then SKP2 mRNA levels were assessed (qPCR). G, HSKP2 mRNA levels measured by qPCR after 12 h of 1 mM 4-PBA exposure of LN229 (shSelK#1), LN229 (shSelK#2), U251 (shSelK#1), and U251 (shSelK#2) cells. I-L Intracellular calcium levels in LN229 and U251 cells with knockdown SelK and in counterpart control cells evaluated using Calbryte 630 staining, after pre-treatment with 2-APB (50 μM) and dantrolene (25 μM) for 2 h, and flow cytometry
3). Menaquinone-4 prevents medication-related osteonecrosis of the jaw through the SIRT1 signaling-mediated inhibition of cellular metabolic stresses-induced osteoblast apoptosis. Free Radical Biology and Medicine, 2023 (PubMed: 37364692) [IF=7.4]
4). Aqueous Extract of Pepino Leaves Ameliorates Palmitic Acid-Induced Hepatocellular Lipotoxicity via Inhibition of Endoplasmic Reticulum Stress and Apoptosis. Antioxidants, 2021 (PubMed: 34204987) [IF=7.0]

Application: WB    Species: Human    Sample: HepG2 Cells

Figure 5 AEPL attenuated ER stress while PA exposure. (a) ER stress-related protein levels were analyzed by Western blotting. (b–d) GRP78, phosphorylated PERK, and phosphorylated IRE1αwere normalized to PERK, IRE1α, and β-actin of each sample. (e) SREBP-1 level in each group was normalized to β-actin. All data were presented as mean ± SD of at least three independent experiments. * p < 0.05 vs. control cells; # p < 0.05 vs. PA-treated cells.
5). Resveratrol protects against CIH-induced myocardial injury by targeting Nrf2 and blocking NLRP3 inflammasome activation. LIFE SCIENCES, 2020 (PubMed: 31996295) [IF=6.1]

Application: WB    Species: Rat    Sample: heart tissue

Fig. 4. Resveratrol treatment weakened cardiac ER stress in rats exposed to CIH. A. Representative western blot images related to ER stress. B. p-PERK/ERK ratio. C. p-IRE/IRE ratio. D. GRP78 expression. n = 6. *p < 0.05 vs. control group; #p < 0.05 vs. CIH group. △ There was a CIH × resveratrol interaction.
6). Icariin improves the cognitive function of APP/PS1 mice via suppressing endoplasmic reticulum stress. LIFE SCIENCES, 2019 (PubMed: 31400352) [IF=6.1]

Application: WB    Species: mouse    Sample: hippocampus

Fig.5| Effects of ICA on ER stress in the hippocampus of APP/PS1 mice. ER stress was activated in the hippocampus of APP/PS1 mice evidenced by the high levels of GRP78, ATF6, and p-IRE1α. ICA treatment decreased GRP78 level, not affected the ATF6, IRE1α and IRE1αphosphorylation. (A) Immunoblots.
7). Sesamol supplementation alleviates nonalcoholic steatohepatitis and atherosclerosis in high-fat, high carbohydrate and high-cholesterol diet-fed rats. Food & Function, 2021 (PubMed: 34606548) [IF=6.1]

Application: WB    Species: Rat    Sample:

Fig. 5 Sesamol regulated the hepatic ERS-IRE1 signaling pathway and NLRP3 expression in HF-HCC diet-fed rats. (A) Representative images of the western blot analyses from hepatic Bip, IRE1, phospho-IRE1, and NLRP3 expression. (B) The semi-quantitative analysis of Bip, and (C and D) representative images of the IHC analyses from hepatic phospho-IRE1 and NLRP3 expression (samples from 3 rats in each group were analyzed). Values are expressed as means ± SEM (n = 3); ###P < 0.001, versus control; ***P < 0.001, versus HF-HCC.
8). Pterostilbene Prevents Tunicamycin-Induced Intestinal Barrier Damage by Targeting Endoplasmic Reticulum Stress, Oxidative Stress, Autophagy, and Gut Microbiota. Journal of Agricultural and Food Chemistry, 2022 (PubMed: 36225099) [IF=6.1]
9). Chrysin ameliorates synovitis and fibrosis of osteoarthritic fibroblast-like synoviocytes in rats through PERK/TXNIP/NLRP3 signaling. Frontiers in Pharmacology, 2023 (PubMed: 37021049) [IF=5.6]
10). Endoplasmic reticulum stress promotes sepsis-induced muscle atrophy via activation of STAT3 and Smad3. Journal of Cellular Physiology, 2023 (PubMed: 36791253) [IF=5.6]
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