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

Eukaryotic Initiation Factor (eIF)

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.

Eukaryotic Initiation Factor (eIF) Related Products (74):

Cat. No. Product Name Effect Purity
  • HY-112654
    GCN2iB Inhibitor 99.83%
    GCN2iB is an ATP-competitive inhibitor of a serine/threonine-protein kinase general control nonderepressible 2 (GCN2), with an IC50 of 2.4 nM.
  • HY-112163
    Zotatifin Inhibitor 99.69%
    Zotatifin (eFT226) is a potent, selective, and well-tolerated eIF4A inhibitor. Zotatifin promotes eIF4A binding to specific mRNA sequences with recognition motifs in the 5’-UTRs (IC50=2 nM) and interferes with the assembly of the eIF4F initiation complex[1]. Zotatifin shows robust antiviral effects, it effectively reduces viral infectivity by inhibiting SARS-CoV-2 NP protein biogenesis (IC90=37 nM)[2]. Zotatifin induces cell apoptosis[1].
  • HY-12495A
    ISRIB Antagonist 98.58%
    ISRIB is a brain-penetrant inhibitor of integrated stress response (ISR). Persistent activation of the ISR has been linked to the development of several neurological disorders as ISR represses translation through inhibiting eIF2B. ISRIB inhibits the ISR by promoting the nucleotide exchange activity of eIF2B and recovering the translation, and thus can be used for neurological disorders research[1][2][3].
  • HY-100877
    GCN2-IN-1 Inhibitor
    GCN2-IN-1 (A-92) is a potent general control nonderepressible 2 kinase (GCN2) inhibitor with an IC50 of <0.3 μM in the enzyme assay and an IC50 of 0.3-3 μM in the cell assay[1].
  • HY-19356
    Rocaglamide Inhibitor 99.34%
    Rocaglamide (Roc-A) is isolated from the genus Aglaia and can be used for coughs, injuries, asthma and inflammatory skin diseases. Rocaglamide is a potent inhibitor of NF-κB activation in T-cells. Rocaglamide is a potent and selective heat shock factor 1 (HSF1) activation inhibitor with an IC50 of ~50 nM. Rocaglamide inhibits the function of the translation initiation factor eIF4A. Rocaglamide also has anticancer properties in leukemia[1][2][3].
  • 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[1].
  • HY-138844
    3-AP-Me
    3-AP-Me is a dimethyl derivative of the nucleotide reductase inhibitor 3-AP (SML0568). 3-AP-Me can activate the endoplasmic reticulum (ER) stress pathway by promoting the phosphorylation of eIF2α and increasing the gene expression of transcription factors ATF4 and ATF6, leading to cell apoptosis. Additionally, 3-AP-Me can activate the stress kinases c-Jun N-terminal kinase (JNK) and p38 mitogen-activated protein kinases. 3-AP-Me also leads to the upregulation of the spliced mRNA variant XBP1, can be used in cancer research[1].
  • 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[1].
  • HY-W009034
    Fmoc-Suberol
    Fmoc-Suberol is a protein cross-linking agent.
  • HY-145309
    eIF4E-IN-3 Inhibitor
    eIF4E-IN-3 is a potent inhibitor of eukaryotic initiation factor 4e (eIF4e). eIF4E-IN-3 has the potential for researching eIF4e dependent diseases, including the research of cancer (extracted from patent WO2021003157A1, compound 485)[1].
  • HY-16366
    Briciclib Inhibitor 99.63%
    Briciclib (ON 014185) is a derivative of ON 013100, and has the potential in targeting eIF4E for solid cancers.
  • HY-147831
    EIF2α activator 1 Activator 98.77%
    EIF2α activator 1 (Compound 40) is an activator of eukaryotic initiation factor 2 alpha (eIF2α) phosphorylation. EIF2α activator 1 increases the expression level of eIF2α downstream proteins, ATF and CHOP. EIF2α activator 1 exhibits antiproliferative activity againist K562 and PBMC cells with IC50s of 4.00 and 19.3 μM, respectively[1].
  • HY-N7071A
    Maduramicin ammonium Inhibitor
    Maduramicin ammonium (Maduramycin ammonium) is isolated from the actinomycete Actinomadura rubra. Maduramicin ammonium (Maduramycin ammonium) is an anticoccidial agent for the the treatment of Eimeria spp., E. adenoeides, E. gallopavonis, and E. dispersa infection[1]. Maduramicin ammonium (Maduramycin ammonium) induces cell apoptosis in chicken myocardial cells via intrinsic and extrinsic pathways[2].
  • 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)[1].
  • HY-151460
    GCN2-IN-7 Inhibitor 99.85%
    GCN2-IN-7 (compound 39) is an orally active and selective general control nonderepressible 2 (GCN2) inhibitor (IC50=5 nM). GCN2-IN-7 shows anti-tumor activity in vivo[1].
  • HY-19560
    SBI-0640756 Inhibitor 99.75%
    SBI-0640756 (SBI-756) is an inhibitor of eIF4G1 and disrupts the eIF4F complex.
  • HY-148449
    eIF4A3-IN-15 Inhibitor
    eIF4A3-IN-15 (compound 52) is a silvestrol (HY-13251) analogue. eIF4A3-IN-15 interferes the assembling of eIF4F translation complex with EC50s of 11, 700 and 120 nM for myc-LUC, tub-LUC and the growth inhibition for MBA-MB-231 cells. eIF4A3-IN-15 can be used for the research of human cancer pathogenesis[1].
  • HY-160196
    HC-7366 Inhibitor 99.95%
    HC-7366 (compound 3) has GCN2 inhibitory activity, with the IC50 value less than 0.05 μM. HC-7366 plays an important role in anti-tumor research[1].
  • 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[1][2][3][4][5].
  • HY-14427
    4E1RCat Inhibitor
    4E1RCat is an inhibitor of cap-dependent translation, and inhibits eIF4E:eIF4GI interaction, with an IC50 an of ～4 μM.