2. Signaling Pathways
  3. Cell Cycle/DNA Damage
  4. Eukaryotic Initiation Factor (eIF)

Eukaryotic Initiation Factor (eIF)

Eukaryotic Initiation Factor (eIF)

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Eukaryotic initiation factors (eIFs) are proteins involved in the initiation phase of eukaryotic translation. These proteins help stabilize the formation of the functional ribosome around the start codon and also provide regulatory mechanisms in translation initiation.

Eukaryotic initiation factor 2B (eIF2B) is a guanine nucleotide-exchange factor which mediates the exchange of GDP (bound to initiation factor eIF2) for GTP, thus regenerating the active [eIF2.GTP] complex that is required for peptide-chain initiation. The activity of eIF2B is a key control point for eukaryotic protein synthesis and is altered in response to viral infection, hormones, nutrients, growth factors and certain stresses.

Eukaryotic translation initiation factor 4E (eIF4E) is best known for its function in the initiation of protein synthesis on capped mRNAs in the cytoplasm. Eukaryotic initiation factor (elF) 4A functions as a subunit of the initiation factor complex elF4F, which mediates the binding of mRNA to the ribosome.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-129769
    CMLD012073
    		Inhibitor
    CMLD012073 is an amidino-rocaglates and is a potent eukaryotic initiation factor 4A (eIF4A) inhibitor. CMLD012073 inhibits the growth of NIH/3T3 cells with an IC50 of 10 nM. CMLD012073 inhibits eukaryotic translation initiation by modifying the behavior of the RNA helicase (eIF4A).
    CMLD012073
  • HY-129768
    CMLD012072
    		Inhibitor
    CMLD012072 is an amidino-rocaglates and is a potent eukaryotic initiation factor 4A (eIF4A) inhibitor. CMLD012072 can induce RNA clamping of eIF4A1 and eIF4A2 and possess potent anti-neoplastic activity.
    CMLD012072
  • HY-145361
    eIF4A3-IN-7
    		Inhibitor
    eIF4A3-IN-7 is a potent inhibitor of eIF4A3. eIF4A3-IN-7 has the potential for researching cancer and other dysproliferative diseases (extracted from patent WO2019161345A1, Compound 8).
    eIF4A3-IN-7
  • HY-134361
    ATP-γ-S tetrasodium
    		Chemical
    ATP-γ-S (tetrasodium) is a P2Y11 receptor agonist, an antioxidant and a neuroprotective agent. ATP-γ-S (tetrasodium) can be used as a substrate for the nucleotide hydrolysis and RNA unwinding activities of eukaryotic translation initiation factor eIF4A. ATP-γ-S (tetrasodium) is active in ATP hydrolysis.
    ATP-γ-S tetrasodium
  • HY-145240
    eIF4E-IN-1
    		Inhibitor
    eIF4E-IN-1 is a potent inhibitor of eIF4E. eIF4E-IN-1 inhibits immunosuppression components such as immune checkpoint proteins PD-1, PD-L1, LAG3, TIM3, and/or IDO, in order to inhibit or release immune suppression in certain diseases, such as cancer and infectious disease (extracted from patent WO2021003194A1, compound Y).
    eIF4E-IN-1
  • 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-168106
    ZMF-24
    		Inhibitor
    ZMF-24 is an anti-triple-negative breast cancer (TNBC) agent with IC50 values of 0.22 μM and 0.44 μM against TNBC proliferation in BT-549 cells and MDA-MB-231 cells, respectively. ZMF-24 inhibits Eukaryotic translation initiation factor 3 subunit D (EIF3D) that disrupts the energy supply of TNBC by inhibiting glycolysis and further induces profound TNBC apoptosis by stimulating persistent ER stress.
    ZMF-24
  • HY-158198
    PRXS571
    		Modulator
    PRXS571 is a potent modulator of the neuronal integrated stress response (ISR) and can be used in neural-related research.
    PRXS571
  • HY-155676
    eIF4E-IN-5
    		Inhibitor
    eIF4E-IN-5 (Compound 6n) is a eIF4E cell-permeable inhibitor. eIF4E-IN-5 can bind to capped mRNA to inhibit cap-dependent translation.
    eIF4E-IN-5
  • HY-164026
    ISR modulator-1
    		Modulator
    ISR modulator-1 (Compound 212) is a modulator for integrated stress response pathway (ISR)
    ISR modulator-1
  • HY-176428
    PROTAC MNK1 degrader-1
    		Inhibitor
    PROTAC MNK1 degrader-1 is a selective MNK1 PROTAC degrader with a DC50 of 11.92 nM, and a Dmax > 96% in MV4-11 cells. PROTAC MNK1 degrader-1 significantly reduces p-eIF4E (IC50: 22.07 nM), induces apoptosis, and arrests the cell cycle at the G1 phase. PROTAC MNK1 degrader-1 has potent antitumor activity. PROTAC MNK1 degrader-1 has robust antileukemic efficacy in MV4-11 xenograft mice model with acceptable drug safety. Pink: MNK1 ligand (HY-176429); Blue: CRBN ligase ligand (HY-A0003); Black: linker (HY-Y1139); CRBN + linker: HY-176430
    PROTAC MNK1 degrader-1
  • HY-176842
    eIF4A-IN-1
    		Inhibitor
    eIF4A-IN-1 is an eIF4A inhibitor used in tumor research.
    eIF4A-IN-1
  • HY-145359
    eIF4A3-IN-5
    		Inhibitor
    eIF4A3-IN-5 is a potent inhibitor of eukaryotic initiation factor 4A (eIF4A), such as eIF4AI and eIF4AII. eIF4A3-IN-5 has the potential for the research of eIF4A dependent diseases, including the research of cancer (extracted from patent US20170145026A1).
    eIF4A3-IN-5
  • HY-176844
    eIF4A-IN-3
    		Inhibitor
    eIF4A-IN-3 (Compound 71E) is an Eukaryotic translation initiation factor 4A (eIF4A) inhibitor. eIF4A-IN-3 can be used as a cytotoxic payload for synthesis of antibody-drug conjugates (ADCs).
    eIF4A-IN-3
  • HY-155337
    eIF4E-IN-6
    		Inhibitor
    eIF4E-IN-6(compound 4b) is a GMP analogs synthesized to targeteIF4Eand restrain its binding to cap mRNA.eIF4E-IN-6shows cell cytotoxicity against Caco-2, HepG-2,and MCF-7 cells, withIC50values of 31, 27, and 21 μM, respectively.
    eIF4E-IN-6
  • HY-148664
    eIF4E-IN-4
    		Inhibitor
    eIF4E-IN-4 (Compound 33) is a selective inhibitor of eukaryotic initiation factor 4E (eIF4E) with biochemical activity value of 95 nM. eIF4E-IN-4 inhibits cap-dependent mRNA translation with an IC50 value of 2.5 μM. eIF4E-IN-4 can be used for breast cancer, colon cancer, and head and neck cancer study.
    eIF4E-IN-4
  • HY-175082
    TBPH
    TBPH is a brominated flame retardant. TBPH enhances hepatic steatosis, inflammation, and fibrosis in mice with nonalcoholic steatohepatitis (NASH). TBPH induces dysregulation of phospholipid metabolism, reducing cardiolipin (CL) and phosphatidylserine (PS) levels. TBPH leads to impaired endoplasmic reticulum-mitochondria (ER-Mito) contacts, subsequently causing mitochondrial dysfunction. TBPH induces lung injury through an inflammatory response mediated by mitochondria-derived ds-DNA. TBPH can be used to study the role of MFN2-mediated ER-mitochondria contacts in lipid metabolism homeostasis.
    TBPH
  • HY-145360
    eIF4A3-IN-6
    		Inhibitor
    eIF4A3-IN-6 is a potent inhibitor of eukaryotic initiation factor 4A (eIF4A), such as eIF4AI and eIF4AII. eIF4A3-IN-6 has the potential for the research of eIF4A dependent diseases, including the research of cancer (extracted from patent US20170145026A1).
    eIF4A3-IN-6
  • HY-W319647
    GCN2 activator-1
    		Inhibitor
    GCN2 activator-1 (Compound 20) is a GCN2 activator. GCN2 activator-1 binds within the ATP-pocket of GCN2 and activates GCN2 in a GCN1-independent manner. GCN2 activator-1 activates Integrated Stress Response (ISR) in cells. GCN2 activator-1 inhibits PKR with an IC50 of 3.75 µM. GCN2 activator-1 can be used for research of pulmonary veno-occlusive disease (PVOD).
    GCN2 activator-1
  • HY-163479
    MNK1/2-IN-7
    		Inhibitor
    MNK1/2-IN-7 (compound 20j) is an orally available inhibitor of MNK1/2 with anticancer activity and hERG safety. MNK1/2-IN-7 also inhibits the phosphorylation of eIF4E, inhibiting the MNK/eIF4E signaling pathway and cancer cell proliferation. MNK1/2-IN-7 is synergistic with Ibrutinib (HY-109970).
    MNK1/2-IN-7
Cat. No. Product Name / Synonyms Application Reactivity