1. Cell Cycle/DNA Damage
  2. DNA-PK


DNA-PK (DNA-dependent protein kinase) is a nuclear serine/threonine protein kinase composed of a large catalytic subunit (DNA-PKcs) and a heterodimeric DNA-targeting subunit Ku. DNA-PK is a major component of the nonhomologous end-joining (NHEJ) pathway of DNA double-strand breaks repair. DNA-PK specifically requires association with DNA for its kinase activity, plays important roles in the regulation of different DNA transactions, including transcription, replication and DNA repair, as well as in the maintenance of telomeres.

The assembly of DNA-PK at DSB ends serves as a platform to recruit Artemis, DNA ligase IV and other NHEJ factors that are involved in end-processing and ligation. Within the DNA-PK complex, Ku proteins confer high affinity to DSB ends, and function as early sensors. The subsequent recruitment of DNA-PKcs to DSBs via the Ku proteins triggers the activation of DNA-PKcs, a member of the phosphatidylinositol 3-kinase-related kinase (PIKK) family. Upon activation, DNA-PKcs phosphorylates a number of substrates, including H2AX, XRCC4, Artemis and most importantly, DNA-PKcs itself. Autophosphorylation of DNA-PKcs occurs at numerous Ser/Thr residues throughout the kinase, and has been shown to mediate NHEJ.

DNA-PK Related Products (38):

Cat. No. Product Name Effect Purity
  • HY-111783
    AZD-7648 Inhibitor 99.89%
    AZD-7648 is a potent, orally active, selective DNA-PK inhibitor with an IC50 of 0.6 nM. AZD-7648 induces apoptosis and shows antitumor activity[1].
  • HY-10115
    PI-103 Inhibitor 98.93%
    PI-103 is a potent PI3K and mTOR inhibitor with IC50s of 8 nM, 88 nM, 48 nM, 150 nM, 20 nM, and 83 nM for p110α, p110β, p110δ, p110γ, mTORC1, and mTORC2. PI-103 also inhibits DNA-PK with an IC50 of 2 nM. PI-103 induces autophagy[1][2][3][4].
  • HY-10108
    LY294002 Inhibitor
    LY294002 is a broad-spectrum inhibitor of PI3K with IC50s of 0.5, 0.57, and 0.97 μM for PI3Kα, PI3Kδ and PI3Kβ, respectively[1]. LY294002 also inhibits CK2 with an IC50 of 98 nM[2]. LY294002 is a competitive DNA-PK inhibitor that binds reversibly to the kinase domain of DNA-PK with an IC50 of 1.4 μM. LY294002 is an apoptosis activator[3].
  • HY-11006
    KU-57788 Inhibitor 99.73%
    KU-57788 (NU7441) is a highly potent and selective DNA-PK inhibitor with an IC50 of 14 nM. KU-57788 is an NHEJ pathway inhibitor. KU-57788 also inhibits PI3K and mTOR with IC50s of 5.0 and 1.7 μM, respectively[1].
  • HY-13002
    Torin 2 Inhibitor 99.98%
    Torin 2 is an mTOR inhibitor with EC50 of 0.25 nM for inhibiting cellular mTOR activity, and exhibits 800-fold selectivity over PI3K (EC50: 200 nM). Torin 2 also inhibits DNA-PK with an IC50 of 0.5 nM in the cell free assay. Torin 2 can suppress both mTORC1 and mTORC2.
  • HY-16124
    Canfosfamide Inhibitor
    Canfosfamide (TLK-286, TER286) is a glutathione analogue prodrug that is activated by glutathione S-transferase P1-1 and induces apoptosis. Canfosfamide also inhibits the catalytic kinase activity of DNA-dependent protein kinase (DNA-PK). Canfosfamide produces an anticancer alkylating agent and a glutathione derivative after activation. Canfosfamide can be used to research malignancies[1][2][3].
  • HY-142944
    DNA-PK-IN-2 Inhibitor
    DNA-PK-IN-2 is a potent inhibitor of DNA-PK. DNA-dependent protein kinase (DNA-PK) is a DNA-PK enzyme complex composed of Ku70/Ku80 heterodimer and DNA-dependent protein kinase catalytic subunit (DNA-PKcs). DNA-PK-IN-2 has the potential for the research of cancer diseases (extracted from patent WO2021136462A1, compound 1)[1].
  • HY-110109
    ETP-45658 Inhibitor 98.05%
    ETP-45658 is a potent PI3K inhibitor, with IC50s of 22.0 nM, 39.8 nM, 129.0 nM and 717.3 nM for PI3Kα, PI3Kδ, PI3Kβ and PI3Kγ, respectively. ETP-45658 also can inhibit DNA-PK (IC50=70.6 nM) and mTOR (IC50=152.0 nM). ETP-45658 can be used for the research of cancer[1][2].
  • HY-146565
    DNA-PK-IN-8 Inhibitor
    DNA-PK-IN-8 is a highly potent, selective and orally active DNA-dependent protein kinase (DNA-PK) inhibitor with an IC50 value of 0.8 nM. DNA-PK-IN-8 exhibits synergistic antiproliferative activity against a series of cancer cell lines and significantly suppresses HL-60 tumor growth, when using in combination with Doxorubicin[1].
  • HY-122727
    STL127705 Inhibitor
    STL127705 (Compound L) is a potent Ku 70/80 heterodimer protein inhibitor with an IC50 of 3.5 μM. STL127705 interferes the binding of Ku70/80 to DNA and by inhibits the activation of the DNA-PKCS kinase. STL127705 shows antiproliferative and anticancer activity. STL127705 induces apoptosis[1][2].
  • HY-101667
    LTURM34 Inhibitor 99.89%
    LTURM34 is a specific DNA-PK inhibitor (IC50=34 nM). LTURM34 exhibits 170-fold selectivity for DNA-PK over PI3K. LTURM34 shows potent antiproliferative activity in a wide range of tumor cell lines[1].
  • HY-13431
    KU-0060648 Inhibitor 99.39%
    KU-0060648 is a dual inhibitor of PI3K and DNA-PK with IC50s of 4 nM, 0.5 nM, 0.1 nM, 0.594 nM and 8.6 nM for PI3Kα, PI3Kβ, PI3Kγ, PI3Kδ and DNA-PK, respectively[1].
  • HY-13281
    PIK-75 hydrochloride Inhibitor
    PIK-75 hydrochloride is a reversible DNA-PK and p110α-selective inhibitor, which inhibits DNA-PK, p110α and p110γ with IC50s of 2, 5.8 and 76 nM, respectively. PIK-75 hydrochloride inhibits p110α >200-fold more potently than p110β (IC50=1.3 μM)[1][2]. PIK-75 hydrochloride induces apoptosis[3].
  • HY-144038
    DNA-PK-IN-5 Inhibitor
    DNA-PK-IN-5 is a potent inhibitor of DNA-PK. DNA-PK-IN-5 inhibits DNA-PKcs activity, thus greatly reducing tumor DNA repair and inducing cells to enter the apoptotic program. DNA-PK-IN-5 enhances the sensitivity of tumor tissues to radiotherapy, overcomes the problem of drug resistance, and enhances the inhibitory effect on a variety of solid tumors and hematological tumors (extracted from patent WO2021204111A1, compound 2)[1].
  • HY-19341
    Compound 401 Inhibitor 99.09%
    Compound 401 is a synthetic inhibitor of DNA-PK (IC50 = 0.28 μM) that also targets mTOR but not PI3K in vitro.
  • HY-19977
    YU238259 Inhibitor 99.57%
    YU238259 is an inhibitor of homology-dependent DNA repair (HDR), used for cancer research.
  • HY-100707
    IC 86621 Inhibitor
    IC 86621 is a potent DNA-dependent protein kinase (DNA-PK) inhibitor, with an IC50 of 120 nM. IC 86621 also acts as a selective and reversible ATP-competitive inhibitor.IC 86621 inhibits DNA-PK mediated cellular DNA double-strand break (DSB) repair (EC50=68 µM). IC 86621 increases DSB-induced antitumor activity without cytotoxic effects. IC 86621 can protects rheumatoid arthritis (RA) T cells from apoptosis[1][2].
  • HY-144036
    DNA-PK-IN-3 Inhibitor
    DNA-PK-IN-3 is a potent inhibitor of DNA-PK. DNA-PK-IN-3 synergistically enhances the effect of radiotherapy and chemotherapy and effectively inhibits tumor growth. DNA-PK-IN-3 also effectively reduces the damage to normal cells and reducing side effects. DNA-PK-IN-3 has the potential for the research of cancer disease (extracted from patent WO2021213460A1, compound 4)[1].
  • HY-147567
    ATR-IN-15 Inhibitor
    ATR-IN-15 (compound 1) is an orally active and potent ATR kinase inhibitor, with an IC50 of 8 nM. ATR-IN-15 also inhibits human colon tumor cells LoVo, DNA-PK and PI3K, with IC50 values of 47, 663 and 5131 nM, respectively[1].
  • HY-19939S
    VX-984 Inhibitor 99.20%
    VX-984 is an orally active, potent, selective and BBB-penetrated DNA-PK inhibitor. VX-984 efficiently inhibits NHEJ (non-homologous end joining) and increases DSBs (DNA double-strand breaks). VX-984 can be used for glioblastomas (GBM) and non-small cell lung cancer (NSCLC) research[1][2][3].