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-10197
    Wortmannin
    		Inhibitor 99.86%
    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
  • HY-12137
    Volasertib
    		Inhibitor 99.41%
    Volasertib (BI 6727) is an orally active, highly potent and ATP-competitive Polo-like kinase 1 (PLK1) inhibitor with an IC50 of 0.87 nM. Volasertib inhibits PLK2 and PLK3 with IC50s of 5 and 56 nM, respectively. Volasertib induces mitotic arrest and apoptosis. Volasertib, a dihydropteridinone derivative, shows marked antitumor activity in multiple cancer models.
    Volasertib
  • HY-50698
    BI 2536
    		Inhibitor 99.95%
    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
  • HY-15828
    Onvansertib
    		Inhibitor 99.55%
    NMS-1286937 is a potent, selective and orally available PLK1 inhibitor, with an IC50 of 2 nM.
    Onvansertib
  • HY-18682
    Centrinone
    		Inhibitor 98.16%
    Centrinone (LCR-263) is a selective and reversible inhibitor of polo-like kinase 4 (PLK4) with a Ki of 0.16 nM.
    Centrinone
  • HY-159493
    BI2536-PEG2-Halo
    		Inhibitor
    BI2536-PEG2-Halo is a bifunctional molecule containing a ligand for Halo tag and a Polo-like kinase 1 (PLK1) inhibitor BI-2536 (HY-50698). BI2536-PEG2-Halo inhibits the proliferation of 293T cells with Halo-p53R273H(FL)-mCherry tag (IC50=23 nM), exhibits selective toxicity against p53 mutant cancer cells.
    BI2536-PEG2-Halo
  • 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-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-50877
    GSK461364
    		Inhibitor 99.82%
    GSK461364 is a selective, reversible and ATP-competitive Polo-like kinase 1 (PLK1) inhibitor with a Ki value of 2.2 nM.
    GSK461364
  • HY-12037A
    Rigosertib
    		Inhibitor 98.52%
    Rigosertib (ON-01910) is a multi-kinase inhibitor and a selective anti-cancer agent, which induces apoptosis by inhibition the PI3 kinase/Akt pathway, promots the phosphorylation of histone H2AX and induces G2/M arrest in cell cycle. Rigosertib is a selective and non-ATP-competitive inhibitor of PLK1 with an IC50 of 9 nM.
    Rigosertib
  • HY-18683
    Centrinone-B
    		Inhibitor 98.46%
    Centrinone-B (LCR-323) is a potent and highly selective PLK4 inhibitor, with a Ki of 0.59 nM.
    Centrinone-B
  • HY-100789
    ON1231320
    		Inhibitor 99.24%
    ON1231320 is a highly specific polo like kinase 2 (PLK2) inhibitor with an IC50 of 0.31 µM. ON1231320 blocks tumor cell cycle progression in the G2/M phase in mitosis, causing apoptotic cell death. ON1231320, an arylsulfonyl pyrido-pyrimidinone, has antitumor activity.
    ON1231320
  • HY-12037
    Rigosertib sodium
    		Inhibitor 99.57%
    Rigosertib sodium (ON-01910 sodium) is a multi-kinase inhibitor and a selective anti-cancer agent, which induces apoptosis by inhibition the PI3K/Akt pathway, promotes the phosphorylation of histone H2AX and induces G2/M arrest in cell cycle. Rigosertib sodium is a selective and non-ATP-competitive inhibitor of PLK1 with an IC50 of 9 nM.
    Rigosertib sodium
  • HY-12300
    Ocifisertib
    		Inhibitor 99.78%
    CFI-400945 free base is a potent, selective and orally bioavailable PLK4 inhibitor with a Ki and an IC50 of 0.26 nM and 2.8 nM, respectively.
    Ocifisertib
  • HY-11003
    GW843682X
    		Inhibitor 99.89%
    GW843682X is a selective, ATP-competitive inhibitor of PLK1 and PLK3, with IC50s of 2.2 nM and 9.1 nM, respectively, and is also >100-fold selective against ～30 other kinases.
    GW843682X
  • HY-18009
    (Z)-LFM-A13
    		Inhibitor 99.80%
    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 shows no effects on JAK1 and JAK3, Src family kinase HCK, EGFR and IRK.
    (Z)-LFM-A13
  • HY-15161
    Ro3280
    		Inhibitor 98.87%
    Ro3280 is a potent, highly selective inhibitor of PLK1 with an IC50 and a Kd of 3 nM and 0.09 nM, respectively, and nearly has no effect on PLK2 and PLK3.
    Ro3280
  • HY-112356
    Scytonemin
    		Inhibitor 99.53%
    Scytonemin is a hydrophobic alkaloid pigment that can be isolated from the outer sheath of cyanobacteria. Scytonemin has protective function against short-wave solar ultraviolet (UV) radiation, which can reduce the generation of reactive oxygen species (ROS) and the formation of DNA damage. Scytonemin also has anti-inflammatory and anti-proliferative activities, produces concentration-dependent inhibition (IC50=2.0 μM) of polo-like kinase 1 (PLK1)-mediated cdc25C phosphorylation, and plays an important role in regulating the G2/M transition in the cell cycle. It can be used in the research of cancer, acute inflammation and sunscreen cosmetics.
    Scytonemin
  • HY-15155
    MLN0905
    		Inhibitor 99.94%
    MLN0905 is a potent, orally active Polo-like kinase 1 (PLK1) inhibitor. MLN0905 has inhibitory potency against PLK1 with an IC50 value of 2 nM. MLN0905 can be used for the research of cancer.
    MLN0905
  • HY-15160
    TAK-960
    		Inhibitor 99.75%
    TAK-960 is an orally available, selective inhibitor of polo-like kinase 1 (PLK1), with an IC50 of 0.8 nM. TAK-960 also shows inhibitory activities against PLK2 and PLK3, with IC50s of 16.9 and 50.2 nM, respectively. TAK-960 inhibits proliferation of multiple cancer cell lines and exhibits significant efficacy against multiple tumor xenografts.
    TAK-960
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
Polo-like Kinase (PLK) Isoform Comparison

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