2. Signaling Pathways
  3. Cell Cycle/DNA Damage
  4. Polo-like Kinase (PLK)

Polo-like Kinase (PLK)

Polo-like Kinase (PLK)

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Polo-like Kinases (PLKs) are a group of highly conserved serine/threonine protein kinases that play a key role in processes such as cell division and checkpoint regulation of mitosis. In mammals, five PLKs (PLK 1-5) encompass diverse roles in centrosome dynamics, spindle formation, intra S-phase and G2/M checkpoints, and DNA damage response.

PLKs are characterized by their Polo-box domain, which mediates protein interactions. They are additionally controlled by phosphorylation, proteolysis, and transcription, depending on the biological context. PLKs are now recognized to link cell division to developmental processes and to function in differentiated cells.

Polo-like Kinase (PLK) Isoform Specific Products:

Polo-like Kinase (PLK) Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-126249
    AAPK-25
    		Inhibitor 98.31%
    AAPK-25 is a potent and selective Aurora/PLK dual inhibitor with anti-tumor activity, which can cause mitotic delay and arrest cells in a prometaphase, reflecting by the biomarker histone H3Ser10 phosphorylation and followed by a surge in apoptosis. AAPK-25 targets Aurora-A, -B, and -C with Kd values ranging from 23-289 nM, as well as PLK-1, -2, and -3 with Kd values ranging from 55-456 nM.
    AAPK-25
  • HY-15159
    Cyclapolin 9
    		Inhibitor 99.16%
    Cyclapolin 9 is a potent, selective and ATP-competitive polo-like kinase 1 (PLK1) inhibitor with an IC50 of 500 nM. Cyclapolin 9 is inactive against other kinases.
    Cyclapolin 9
  • HY-110002
    LFM-A13
    		Inhibitor 99.65%
    LFM-A13 is a potent BTK, JAK2, PLK inhibitor, inhibits recombinant BTK, Plx1 and PLK3 with IC50s of 2.5 μM, 10 μM and 61 μM. LFM-A13 has antiproliferative activity and anticancer activity. LFM-A13 can be used in cancer-related research
    LFM-A13
  • HY-160558
    PLK1/BRD4-IN-3
    		Inhibitor 99.66%
    PLK1/BRD4-IN-3 (Compound 21) is a selective dual inhibitor for bromodomain 4 (BRD4) and polo-like kinase 1 (PLK1). PLK1/BRD4-IN-3 inhibits BRD4-BD1, PLK1 and BRDT-BD1, with IC50s of 0.059, 0.127 and 0.245 μM, respectively.
    PLK1/BRD4-IN-3
  • HY-15160B
    TAK-960 dihydrochloride
    		Inhibitor 99.19%
    TAK-960 dihydrochloride is an orally available, selective inhibitor of polo-like kinase 1 (PLK1), with an IC50 of 0.8 nM. TAK-960 dihydrochloride also shows inhibitory activities against PLK2 and PLK3, with IC50s of 16.9 and 50.2 nM, respectively. TAK-960 dihydrochloride inhibits proliferation of multiple cancer cell lines and exhibits significant efficacy against multiple tumor xenografts.
    TAK-960 dihydrochloride
  • HY-134775
    PLK4-IN-1
    		Inhibitor 99.94%
    PLK4-IN-1 (Example A6) is a PLK4 inhibitor, with an IC50 of ≤ 0.1 μM.
    PLK4-IN-1
  • HY-77195
    Poloxime
    		Inhibitor
    Poloxime, a hydrolysis product of poloxin, is a non-ATP-competitive Plk1 inhibitor, with moderate Plk1 inhibitory activity.
    Poloxime
  • HY-15158A
    SBE13
    		Inhibitor
    SBE13 is a potent and selective Plk1 inhibitor, with an IC50 of 200 pM; SBE13 poorly inhibits Plk2 (IC50>66 μM) or Plk3 (IC50=875 nM).
    SBE13
  • HY-12137A
    Volasertib trihydrochloride
    		Inhibitor
    Volasertib (BI 6727) trihydrochloride is an orally active, highly potent and ATP-competitive Polo-like kinase 1 (PLK1) inhibitor with an IC50 of 0.87 nM. Volasertib trihydrochloride inhibits PLK2 and PLK3 with IC50s of 5 and 56 nM, respectively. Volasertib trihydrochloride induces mitotic arrest and apoptosis. Volasertib trihydrochloride, a dihydropteridinone derivative, shows marked antitumor activity in multiple cancer models.
    Volasertib trihydrochloride
  • HY-18651
    (E/Z)-Rigosertib sodium
    Rigosertib (ON-01910) is a biochemical reagent that can be used as a biological material or organic compound for life science related research.
    (E/Z)-Rigosertib sodium
  • HY-112395
    BTO-1
    		Inhibitor
    BTO-1 is a Polo-like kinase (Plk) inhibitor. BTO-1 is primarily used for phosphorylation and dephosphorylation applications.
    BTO-1
  • HY-169579
    PLK1-IN-11
    		Inhibitor
    PLK1-IN-11 (Cluster 4, 16953209) is a PLK1 inhibitor, with IC50 of 1 μM. PLK1-IN-11 can be used in research on a variety of cancers, including pancreatic, ovarian, breast, and non-small cell lung carcinoma.
    PLK1-IN-11
  • HY-10197R
    Wortmannin (Standard)
    		Inhibitor
    Wortmannin (Standard) is the analytical standard of Wortmannin. This product is intended for research and analytical applications. Wortmannin (SL-2052; KY-12420) is a potent, selective and irreversible PI3K inhibitor with an IC50 of 3 nM. Wortmannin also blocks autophagy formation, and potently inhibits Polo-like kinase 1 (PlK1) and Plk3 with IC50s of 5.8 and 48 nM, respectively.
    Wortmannin (Standard)
  • HY-RS10721
    Plk4 Mouse Pre-designed siRNA Set A
    		Inhibitor

    Plk4 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Plk4 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Plk4 Mouse Pre-designed siRNA Set A
  • HY-50698G
    BI 2536 (GMP)
    		Inhibitor
    BI 2536 (GMP) is BI 2536 (HY-50698) produced by using GMP guidelines. GMP small molecules works appropriately as an auxiliary reagent for cell therapy manufacture. BI 2536 is a dual PLK1 and BRD4 inhibitor with IC50s of 0.83 and 25 nM, respectively. BI-2536 suppresses IFNB (encoding IFN-β) gene transcription.
    BI 2536 (GMP)
  • HY-RS10715
    Plk2 Mouse Pre-designed siRNA Set A
    		Inhibitor

    Plk2 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Plk2 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Plk2 Mouse Pre-designed siRNA Set A
  • HY-155377
    PLK1/p38γ-IN-1
    		Inhibitor
    PLK1/p38γ-IN-1(compound 14) is a multitarget inhibitors ofPLK1andp38γ. PLK1/p38γ-IN-1inhibits the growth of human hepatocellular carcinoma and hepatoblastoma cells in vitro.
    PLK1/p38γ-IN-1
  • HY-RS10720
    PLK4 Human Pre-designed siRNA Set A
    		Inhibitor

    PLK4 Human Pre-designed siRNA Set A contains three designed siRNAs for PLK4 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.
    PLK4 Human Pre-designed siRNA Set A
  • HY-121634
    DAP-81
    		Inhibitor
    DAP-81 is an inhibitory agent targeting Polo-like kinases (Plks), a class of evolutionarily conserved serine/threonine kinases. DAP-81 dose-dependently increases the number of monopolar spindles in treated cells. High-resolution live-cell microscopy revealed that Plk activity is required for the assembly and maintenance of bipolar mitotic spindles. Plk inhibition destabilizes centromeric microtubules while stabilizing other spindle microtubules, leading to the formation of monopolar spindles. Further testing of compounds based on "privileged scaffolds" such as the DAP scaffold may lead to the discovery of new cell division probes and anti-microtubule agents.
    DAP-81
  • HY-123702
    CAP-53194
    CAP-53194 is a selective Plk1 inhibitor with potential anticancer activity. CAP-53194 was identified by a high-throughput virtual screening approach using molecular docking, showing 100-fold selectivity for Plk1 over Plk2-4 and other cell cycle kinases. CAP-53194 is able to effectively exploit subtle differences between the binding sites of Plk1 and other Ser/Thr kinases, thereby enhancing their inhibitory effects. CAP-53194 meets the Lipinski compound analog criteria and passes other ADMET filters, indicating good compound compatibility. CAP-53194 belongs to a new class of potential Plk1 inhibitors suitable for subsequent compound development and testing.
    CAP-53194
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
Polo-like Kinase (PLK) Isoform Comparison

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