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

PERK

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

PERK

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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-173188
    EGFR-IN-154
    		Inhibitor
    EGFR-IN-154 (compound 4c) is an EGFR inhibitor with EC50 values of 0.16 μM, 21.73 μM and 41.56 μM against EGFR Del19, EGFR WT and EGFR L858R, respectively. EGFR-IN-154 shows anticancer activity on various cance cell lines. EGFR-IN-154 induces mitochondrial apoptosis, and decreases pERK1/2 and pAkt levels, but increases pJNK and pp38 levels.
    EGFR-IN-154
  • 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-175504
    MLS6357
    		Antagonist
    MLS6357 is a D3 dopamine receptor (D3R)-selective positive allosteric modulator (PAM)-antagonist. MLS6357 exhibits antagonist activity in the D3R-mediated and the BRET-based β-arrestin recruitment assay with IC50s of 13 and 14 μM, and no activity for other DAR subtypes (D1R/D2R/D4R/D5R) (IC50 > 100 μM). MLS6357 is also an antagonist in the D3R-mediated Go-BRET assay with an IC50 of 17 μM. MLS6357 can be used for the study of neuropsychiatric disorders, including substance use disorder.
    MLS6357
  • 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-106159
    SB-T-101141
    SB-T-101141 is a novel taxane. SB-T-101141 effectively induces a noncanonical ferroptosis to overcome Paclitaxel (HY-B0015) resistance of breast cancer. SB-T-101141 facilitates the production of iron and ferrous ions and ROS. SB-T-101141 stably binds to KHSRP to inhibit the iron-dependent expression of CISD1 related to iron homeostasis. SB-T-101141 synergistically enhances the iron-dependent activation of JNK and PERK pathways via KHSRP. SB-T-101141 suppresses breast tumor growth in MCF-7(PR)/MDA-MB-231(PR) or KHSRP knock-down MCF-7 xenograft mice model.
    SB-T-101141
  • HY-P10757
    DTX-P7
    		Activator
    DTX-P7 is a peptide-drug conjugate. DTX-P7, composed of Docetaxel (DTX, HY-B0011) and a heptapeptide (P7), induces unfolded protein response and subsequent apoptosis by degrading Hsp90.
    DTX-P7
  • 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-170849
    Nur77 modulator 4
    Nur77 modulator 4 (Compound 15h) is a Nur77 inducer with a KD of 0.477 μM. Nur77 modulator 4 significantly induces Nur77 expression and apoptosis, showing excellent growth inhibition in HepG2 and MCF-7 cells, with an IC50 of less than 5 μM. Nur77 modulator 4 activates Nur77-mediated ER stress through the PERK-ATF4 and IRE1 signaling pathways, thereby inducing cell apoptosis. Nur77 modulator 4 can be used in cancer research applications .
    Nur77 modulator 4
  • 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-175560
    SOS1-IN-22
    		Inhibitor
    SOS1-IN-22 is a son of sevenless homolog 1 (SOS1) inhibitor. SOS1-IN-22 can inhibit KRAS-G12C/SOS1 complex formation with an IC50 value of 40.28 nM. SOS1-IN-22 can reduce phosphorylation ERK levels. SOS1-IN-22 can be used for the research of cancer, such as pancreatic carcinoma and appendiceal carcinoma.
    SOS1-IN-22
  • HY-178009
    EGFR-IN-175
    		Inhibitor
    EGFR-IN-175 is an orally active and selective EGFRL858R/T790M/C797S inhibitor with an IC50 of 18.94 nM. EGFR-IN-175 can induce cell apoptosis and cause G1 phase arrest. EGFR-IN-175 can downregulate p-EGFR, p-AKT, and p-ERK expression. EGFR-IN-175 can be used for the research of cancer, such as lung cancer.
    EGFR-IN-175
  • 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
  • HY-N0231R
    Bavachalcone (Standard)
    		Inhibitor
    Bavachalcone (Standard) is the analytical standard of Bavachalcone. This product is intended for research and analytical applications. Bavachalcone is a potent inducer of apoptosis. Bavachalcone exerts anticancer activity by promoting autophagy and apoptosis in HepG2 cells. Bavachalcone acts as an anti-neuroinflammatory and antidepressant through the NF-κB pathway. Bavachalcone inhibits osteoclasts by interfering with ERK and Akt signaling pathways and the expression of c-Fos and NFATc1. Bavachalcone exhibits a significant inhibitory effect on baculovirus-expressed BACE-1 in vitro.
    Bavachalcone (Standard)
  • HY-152168
    NSC 295642
    NSC 295642 is a phosphatase inhibitor. NSC 295642 can significantly increase phospho-Erk cytonuclear differences in intact cells. NSC 295642 can be used for the research of cancer.
    NSC 295642
Cat. No. Product Name / Synonyms Application Reactivity