2. Signaling Pathways
  3. Cell Cycle/DNA Damage
  4. PERK

PERK

Protein kinase R-like endoplasmic reticulum kinase; PKR-like endoplasmic reticulum kinase

PERK

Related Products

PDF 0.32 MB

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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-W010451
    1,2,4-Trihydroxybenzene
    		Activator 99.12%
    1,2,4-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.
    1,2,4-Trihydroxybenzene
  • HY-P1421
    Obestatin(human)
    		Activator 99.52%
    Obestatin(human) is a 23-amino acid amidated peptide that regulates appetite and gastrointestinal motility via its interaction with GPR39. Obestatin(human) can be used for weight loss. Obestatin(human) cannot penetrate the cell membrane.
    Obestatin(human)
  • HY-13699
    NBI-42902
    		Inhibitor 98.65%
    NBI-42902 is an orally active, potent functional and competitive antagonist of GnRH receptor with an IC50 value of 0.79 nM, a Ki value of 0.56 nM, respectively. NBI-42902 inhibits GnRH-stimulated inositol phosphate (IP) accumulation, Ca2+ flux, and ERK1/2 activation. NBI-42902 inhibits serum luteinizing hormone (LH) in castrated male macaques. NBI-42902 can be used for research on sex-hormone-related diseases.
    NBI-42902
  • HY-157231A
    HC-5404-Fu
    		Inhibitor 98.92%
    HC-5404-Fu is a PERK inhibitor with an antitumor activity. HC-5404-Fu inhibits endoplasmic reticulum stress response signalling. HC-5404-Fu sensitizes renal cell carcinoma cells to vascular endothelial growth factor (VEGF) receptor tyrosine kinase inhibitors (TKIs). HC-5404-Fu is promising for research of renal cell carcinoma, gastric cancer, metastatic breast cancer, small cell lung cancer, and other solid tumors.
    HC-5404-Fu
  • HY-114978
    VU0424465
    		Agonist 99.84%
    VU0424465 is a potent and partial PAM (positive allosteric modulator)-agonist for mGlu5 mediated iCa2+ mobilization. VU0424465 exhibits high affinity at MPEP allosteric binding site, with a Ki value of 11.8 nM. VU0424465 is also a agonist for pERK1/2 in cortical neurons.
    VU0424465
  • HY-139612A
    (S)-JDQ-443
    		99.32%
    (S)-JDQ-443 is an isomer of JDQ-443 (HY-139612). JDQ-443 is an orally active, potent, selective, and covalent KRAS G12C inhibitor (extracted from patent WO2021120890A1). JDQ-443 shows antitumor activity.
    (S)-JDQ-443
  • HY-W060074
    1-Acetyl-β-carboline
    		Inhibitor
    1-Acetyl-β-carboline is a metabolite of Streptomyces kasugaensis and antibacterial agent. 1-Acetyl-β-carboline increases tyrosinase activity, reduces ERK phosphorylation. 1-Acetyl-β-carboline exhibits antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA) strains with MICs ranging from 128 to 256 ug/mL. 1-Acetyl-β-carboline increases the melanin.
    1-Acetyl-β-carboline
  • HY-P1120A
    WKYMVm TFA
    		Modulator
    WKYMVm (TFA) is a selective formylpeptide receptor 2 (FPR2) agonist. WKYMVm has a powerful anti-inflammatory effect that can reduce lung injury and spinal cord injury. WKYMVm ameliorates obesity by regulating lipid metabolism and leptin signaling. WKYMVm is involved in the regulation of immune cells by activating FPRs, and WKYMVm can promote the chemotactic migration of immune cells and inhibit the apoptosis of phagocytes. In addition, WKYMVm may play a favorable or unfavorable role in tumors, depending on the type of tumor.
    WKYMVm TFA
  • HY-158196
    PERK/eIF2α activator 1
    		Activator 98.88%
    PERK/eIF2α activator 1 (compound V8) is a flavonoid with an anti-tumor activity. PERK/eIF2α activator 1 induces apoptosis and activates the PERK-eIF2α-ATF4 pathway. PERK/eIF2α activator 1 inhibits HepG2 cell proliferation with an IC50 value of 23 μM.
    PERK/eIF2α activator 1
  • HY-116214S1
    Cyprodinil-13C6
    		Inducer
    Cyprodinil-13C6 (CGA-219417-13C6) is the 13C6 labeled Cyprodinil (HY-116214). Cyprodinil (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.
    Cyprodinil-<sup>13</sup>C<sub>6</sub>
  • HY-137813S
    PERK-IN-4-d3
    		Inhibitor
    PERK-IN-4-d3 is the deuterium labeled PERK-IN-4. PERK-IN-4 is a potent and selective PERK (protein kinase R (PKR)-like endoplasmic reticulum kinase) inhibitor with an IC50 of 0.3 nM. PERK is activated in response to a variety of endoplasmic reticulum stresses implicated in numerous disease states.
    PERK-IN-4-d<sub>3</sub>
  • HY-145835A
    (S)-PERK-IN-5
    		Inhibitor
    (S)-PERK-IN-5 is the S-enantiomer of PERK-IN-5. (S)-PERK-IN-5 (example 39) is a PERK inhibitor, with an IC50 of 0.101-0.250 μM.
    (S)-PERK-IN-5
  • HY-144323
    YF135
    		Inhibitor
    YF135 is an efficient and reversible-covalent KRASG12C PROTAC. YF135 is designed and synthesized by tethering KRAS G12C inhibitor 48 (compound 6d) as the ligand, and basing on the scaffold of MRTX849 linkage VHL ligand. YF135 significantly induces the degradation of KRASG12C in a reversible manner and decreases phospho-ERK level through the E3 ligase VHL mediated proteasome pathway.
    YF135
  • HY-N3121R
    Pachypodol (Standard)
    		Activator
    Pachypodol (Standard) is the analytical standard of Pachypodol (HY-N3121). This product is intended for research and analytical applications. Pachypodol is an orally active methoxyflavonoid compound. Pachypodol activates the ERK-dependent Nrf2 pathway and inhibits Apoptosis. Pachypodol exhibits activities such as antioxidant, cytoprotective, anti-inflammatory effects. Pachypodol improves cognition. Pachypodol exerts protective effects against cardiac and liver damage. Pachypodol has anticancer activity against colon cancer.
    Pachypodol (Standard)
  • HY-112417
    Ki11502
    		Inhibitor 99.30%
    Ki11502 is a multi-targeted receptor tyrosine kinase (RTK) inhibitor that selectively inhibits the activity of PDGF β/α receptors with IC50 values less than 10 nM. Ki11502 selectively inhibits PDGF β receptor phosphorylation, proliferation, and proteoglycan synthesis in human vascular smooth muscle cells. Ki11502 can induce Apoptosis) and exhibits profound antiproliferative effects on select subsets of leukemia, including those with Imatinib (HY-15463) resistant mutations. Ki11502 is highly suitable for studying the role of PDGF in vascular diseases, particularly the role of proteoglycans in atherosclerosis.
    Ki11502
  • HY-N3737
    Derrone
    		Inducer
    Derrone, a prenylated isoflavones, is an Aurora kinase inhibitor, with IC50 values of 6 and 22.3 μM against Aurora B and Aurora A, respectively. Derrone shows anti-tumor activity.
    Derrone
  • HY-144693
    MEK/PI3K-IN-2
    		Inhibitor
    MEK/PI3K-IN-2 (compound 6s) is a potent MEK/PI3K inhibitor, with IC50 values of 352 nM (MEK1), 107 nM (PI3Kα), and 137 nM (PI3Kδ), respectively. MEK/PI3K-IN-2 suppresses pAKT and pERK1/2 levels. MEK/PI3K-IN-2 shows anti-proliferative activity against tumor cell lines.
    MEK/PI3K-IN-2
  • HY-153010
    ER proteostasis regulator-1
    		Modulator ≥98.0%
    ER proteostasis regulator-1 (compound 481) is a potent ER proteostasis regulator. ER proteostasis regulator-1 has the potential for the research of Alzheimer's disease and diabetes.
    ER proteostasis regulator-1
  • HY-18318
    Takeda-6D
    		Inhibitor
    Takeda-6D (compound 6d) is an orally active and potent BRAF/VEGFR2 inhibitor, with IC50 values of 7.0 and 2.2 nM, respectively. Takeda-6D shows antiangiogenesis by suppressing the VEGFR2 pathway in 293/KDR and VEGF-stimulated HUVEC cells.Takeda-6D shows significant suppression of ERK1/2 phosphorylation. Takeda-6D shows antitumor activity.
    Takeda-6D
  • HY-144692
    MEK/PI3K-IN-1
    		Inhibitor
    MEK/PI3K-IN-1 (compound 6r) is a potent MEK/PI3K inhibitor, with IC50 values of 124 nM (MEK1), 130 nM (PI3Kα), and 236 nM (PI3Kδ), respectively. MEK/PI3K-IN-1 suppresses pAKT and pERK1/2 levels. MEK/PI3K-IN-1 shows anti-proliferative activity against tumor cell lines.
    MEK/PI3K-IN-1
Cat. No. Product Name / Synonyms Application Reactivity