PERK
Protein kinase R-like endoplasmic reticulum kinase; PKR-like endoplasmic reticulum kinase
Protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK) is one of four known kinases that respond to cellular stress by deactivating the eukaryotic initiation factor 2 α (eIF2α) or other signal transduction cascades. PERK is highly expressed in pancreatic beta-cells and is essential in the beta-cell's development, differentiation and function.
PERK is a type I ER membrane protein containing a stress-sensing domain facing the ER lumen, a transmembrane segment, and a cytosolic kinase domain. Increase in unfolded proteins in the ER causes release of ER chaperones from the stress-sensing domain of PERK, which results in its activation via oligomerization and autophosphorylation at multiple serine, threonine, and tyrosine residues. Upon activation, PERK phosphorylates eIF2α at serine 51, rendering it an inhibitor of the ribosome translation initiation complex, consequently reducing overall protein synthesis. The reduction in translation reduces the ER burden, providing time for the cell to process or degrade the accumulated unfolded proteins to restore ER homeostasis. Although global protein synthesis is decreased, there is specific increased translation of certain mRNAs, such as ATF4, which modulate cellular survival pathways and enhance UPR function. Interfering with PERK function in cancer cells may limit their ability to thrive under hypoxia or nutrient deprived conditions and lead to apoptosis or tumor growth inhibition.
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PERK Related Products (201)
Related Products (201)
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Antibodies (2)
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Triadimefon
0 ImagesTriadimefon is an orally active fungicide. Triadimefon significantly reduces the phosphorylation of AKT1 and ERK1/2. Triadimefon significantly increases pAMPK levels, but does not affect total AMPK levels. Triadimefon inhibits the growth of Saccharomyces cerevisiae, disrupts hormone homeostasis (affecting the synthesis of testosterone, etc.), inhibits fetal adrenal development in rats, induces metabolic shifts in hepatocytes, and impairs spatial learning and memory.
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(±)-Stylopine
0 Images(±)-Stylopine (Tetrahydrocoptisine) is an alkaloid compound. (±)-Stylopine can be isolated from the tubers of the plant Corydalis. (±)-Stylopine inhibits TNF-α, IL-6, and NO production, and attenuates phosphorylation of p38 MAPK, ERK1/2. (±)-Stylopine inhibits NF-κB expression. (±)-Stylopine exhibits anti-inflammatory activity. (±)-Stylopine has protective effects against foot edema, gastric ulcers, anxiety, depression, and acute lung injury.
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Broussoflavonol F
0 ImagesCat. No.: HY-N9330CAS No.: 162558-94-3Broussoflavonol F is a potent dual inhibitor of the HER2-RAS-MEK-ERK signaling pathway and mushroom tyrosinase with an IC50 value of 82.3 μM. Broussoflavonol F downregulates the expression of RAS, HER2, phosphorylated BRAF, phosphorylated MEK and phosphorylated Erk proteins. Broussoflavonol F induces cell cycle arrest and apoptosis, and exhibits cytotoxicity in colon cancer cells. Broussoflavonol F inhibits endothelial proliferation, migration and tube formation, suppresses subintestinal vascular development, and reduces the mRNA levels of angiogenesis-associated genes.Broussoflavonol F can be used for colon cancer research.
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BMS-986408
0 ImagesBMS-986408 is an orally active inhibitor of DGKα and DGKζ, with IC50 values of 0.0003 μM and 0.002 μM, respectively. BMS-986408 activates intratumoral T cell responses, enhances the priming and expansion of tumor-reactive T cells in tumor-draining lymph nodes, and functions as an immunostimulant. BMS-986408 can be used in the research of tumors.
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PERK-IN-4
0 ImagesPERK-IN-4 is a PERK inhibitor with a human IC50 of 0.3 nM and selectivity relative to other kinases. PERK-IN-4 displays moderate rat blood clearance and pharmacokinetic properties.
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DIM-C-pPhCO2Me
0 ImagesDIM-C-pPhCO2Me is a nuclear receptor 4A1 (NR4A1) antagonist. DIM-C-pPhCO2Me induces Apoptosis. DIM-C-pPhCO2Me decreases PAX3-FOXO1A, N-Myc, Rassf4, MyoD1, Grem1, and DAPK1 proteins. DIM-C-pPhCO2Me decreases expression of TXNDC5 and IDH1, induces markers of ER stress (CHOP, ATF4 and p-PERK). DIM-C-pPhCO2Me inhibits renal cell carcinoma, breast cancer. DIM-C-pPhCO2Me can also be used in rhabdomyosarcoma research.
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VUBI1
0 ImagesSynonyms: SOS1 activator 1VUBI1 (SOS1 activator 1) is a benzimidazole derivative and SOS1 activator with a Kd of 44 nM. VUBI1 can significantly activate RAS-GTP and regulate the phosphorylation of ERK. VUBI1 also can serve as a target ligand for synthesizing PROTACs, such as PROTAC SOS1 degrader-1 (HY-145737), to induce SOS1 degradation. VUBI1 can be used in the study of cancer.
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Flavokawain C
0 ImagesFlavokawain C is an orally active natural chalcone. Flavokawain C inhibits the proliferation of various cancer cells. Flavokawain C upregulates GADD153 in cancer cells, inhibits the phosphorylation of Akt and JNK, suppresses early ERK phosphorylation, activates late ERK phosphorylation, activates caspase related subtypes, induces PARP-1 cleavage, causes upregulation of p21 and p27, downregulation of mutant p53 and anti-apoptotic IAP proteins, elevates intracellular ROS levels, reduces SOD activity, and induces apoptosis. Flavokawain C downregulates FABP4, induces autophagy in cancer cells, and activates the AMPK/mTOR pathway. Flavokawain C decreases the expression of glycolysis-related proteins GLUT1 and HK2, and inhibits glycolysis in nasopharyngeal carcinoma cells. Flavokawain C inhibits the activation of the EGFR/PI3K/Akt/mTOR signaling pathway and reduces the expression of HSP90B1. Flavokawain C inhibits angiogenesis by decreasing the expression of angiogenic proteins Ang-1 and VEGF in human umbilical vein endothelial cells. Flavokawain C increases γ-H2AX levels in cells, inhibits the phosphorylation of FAK, PI3K and AKT in cells, and induces DNA damage in cells. Flavokawain C exerts anti-tumor activity in multiple tumor xenograft mouse models. Flavokawain C is applicable to research related to colorectal cancer, colon adenocarcinoma, nephroblastoma, nasopharyngeal carcinoma and liver cancer.
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Vindoline
0 ImagesVindoline is an orally active vinca alkaloid. Vindoline can be extracted from the leaves of Catharanthus roseus. Vindoline has a weak inhibitory effect on the self-assembly of tubulin. Vindoline alleviates Apoptosis, inhibits p-p65 and p-ERK. Vindoline improves diabetes, bone loss, osteoarthritis, and kidney damage.
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Cyprodinil
0 ImagesSynonyms: CGA-219417Cyprodinil (CGA-219417) is a broad-spectrum anilinopyrimidine fungicide and an activator of the aryl hydrocarbon receptor. Cyprodinil also has anti-androgenic and androgenic activities. Cyprodinil can inhibit the biosynthesis of methionine in plant-pathogenic fungi and protect fruits and vegetables from a variety of pathogens.
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Saponarin
0 ImagesSaponarin is an orally active flavonoid compound. Saponarin can be isolated from Gypsophila trichotoma. Saponarin inhibits ERK/p38, NF-κB and MAPK phosphorylation and activates AMPK. Saponarin reduces IL-1β and COX-2. Saponarin has antioxidant, anti-inflammatory, hepatoprotective, hypoglycemic and hypotensive effects. Saponarin improves sleep disorders.
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ML191
0 ImagesSynonyms: CID23612552ML191 (CID23612552) is a GPR55 antagonist. ML191 inhibits ERK phosphorylation and PKC β II translocation downstream of GPR55 signaling. ML191 suppresses LPI-induced activation of ERK1/2 and p38 MAPK signaling, blocks the transcription of RANKL-induced osteoclastogenesis markers, and reduces the bone resorption activity of mature osteoclasts promoted by RANKL. ML191 can be used to investigate diseases associated with bone degradation caused by excessive osteoclast activation, such as osteoporosis and bone damage during the formation stage of bone metastases.
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DGAT-1 inhibitor 2
0 ImagesCat. No.: HY-50670CAS No.: 942999-61-3DGAT-1 inhibitor 2 is an orally active DGAT-1 inhibitor with IC50 values of 15 nM and 9 nM for human DGAT-1 and rat DGAT-1, respectively. DGAT-1 inhibitor 2 increases ROS concentration, GRP78, and PERK protein abundance. DGAT-1 inhibitor 2 increases SREBF1, CPT1A, and MTTP mRNA in fatty acid-treated cells. DGAT-1 inhibitor 2 improves obesity.
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Butyrolactone I
0 ImagesSynonyms: OlomoucinButyrolactone I is an orally active and ATP-competitive inhibitor of CDK1. Butyrolactone I inhibits NF-κB, cdc2 kinase, Bax, ROS production, modulates the PERK/CHOP. Butyrolactone I mitigates heat-stress-induced Apoptosis. Butyrolactone I shows anti-inflammatory and intestinal protective activity. Butyrolactone I has antitumor effects against non-small cell lung, small cell lung, prostate cancer and leukemia. Butyrolactone I can be used in NASH research.
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1,2,4-Trihydroxybenzene
0 ImagesSynonyms: Hydroxyhydroquinone1,2,4-Trihydroxybenzene (Hydroxyhydroquinone) is an ER stress inducer that targets proteins such as PKR-like ER kinase PERK to induce cytotoxicity. 1,2,4-Trihydroxybenzene selectively activates eIF2α phosphorylation, activates the PERK-eIF2α signaling pathway and induces stress granule formation. 1,2,4-Trihydroxybenzene subsequently exacerbates oxidative stress and causes DNA double-strand breaks, destroying organelles such as mitochondria and ER, and inducing cell death. 1,2,4-Trihydroxybenzene also has the potential to exhibit anti-tumor effect, increase blood pressure, and relieve spasm.
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Cyanidin 3,5-diglucoside chloride
0 ImagesCyanidin 3,5-diglucoside chloride is an anthocyanin. Cyanidin 3,5-diglucoside chloride inhibits inflammatory cytokines (IL-1α, IL-1β, and IL-6) expression and NO production. Cyanidin 3,5-diglucoside chloride inhibits the phosphorylation of STAT3, IκB, ERK, p38, and AKT. Cyanidin 3,5-diglucoside chloride inhibits high pressure-induced decrease in GLAST. Cyanidin 3,5-diglucoside chloride exerts anti-inflammatory and skin barrier modulating effects. Cyanidin 3,5-diglucoside chloride can be used in retinal research.
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L18I
0 ImagesL18I is a Bruton's tyrosine kinase (BTK) PROTAC degrader that targets wild-type and BTKC481, and recruits the cereblon E3 ligase to mediate proteasomal degradation. L18I regulates the BCR, TLR, FcγR and NLRP3 inflammasome signaling pathways, inhibits the phosphorylation of PLCγ-2, ERK1/2 and p38, and reduces the levels of B cell activation markers CD25, CD69 and CD86. L18I downregulates the NF-κB, TNF and TLR signaling pathways, reduces the production of pro-inflammatory cytokines, and decreases immune cell infiltration and immune complex deposition. L18I inhibits the proliferation of BTK-expressing lymphoma cells, induces tumor regression in xenograft models, and exhibits synergistic activity when combined with inhibitors of SYK, PI3K or Lyn. L18I can be used in research related to lupus, diffuse alveolar hemorrhage and B-cell lymphoma.
