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

Polo-like Kinase (PLK)

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:

  • PLK1

  • PLK2

  • PLK3

  • PLK4

Polo-like Kinase (PLK) Related Products (29):

Cat. No. Product Name Effect Purity
  • HY-10197
    Wortmannin Inhibitor ≥98.0%
    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.
  • HY-12137
    Volasertib Inhibitor 99.55%
    Volasertib is a highly potent Polo-like kinase 1 (PLK1) inhibitor with an IC50 of 0.87 nM, as well as the two closely related kinases PLK2 and PLK3 with IC50s of 5 and 56 nM, respectively.
  • HY-18682
    Centrinone Inhibitor
    Centrinone (LCR-263) is a selective and reversible inhibitor of polo-like kinase 4 (PLK4) with a Ki of 0.16 nM.
  • 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.
  • HY-15828
    NMS-1286937 Inhibitor 99.70%
    NMS-1286937 is a potent, selective and orally available PLK1 inhibitor, with an IC50 of 2 nM.
  • HY-134775
    PLK4-IN-1 Inhibitor
    PLK4-IN-1 (Example A6) is a PLK4 inhibitor, with an IC50 of ≤ 0.1 μM.
  • HY-124761
    Poloppin Inhibitor
    Poloppin is a potent, cell penetrant inhibitor of the mitotic Polo-like kinase (PLK) (IC50=26.9 μM) and prevents the protein-protein interaction via the Polo-box domain (PBD) (Kd= 29.5 μM). Poloppin selectively kills cells expressing mutant KRAS, enhancing death in mitosis. Poloppin is used for the study of KRAS-mutant cancers as single agents, or in combination with c-MET inhibitors.
  • HY-134775A
    PLK4-IN-3 Inhibitor
    PLK4-IN-3 is a less active absolute stereochemistry of PLK4-IN-1. PLK4-IN-1 is a PLK4 inhibitor, with an IC50 of 0.65 μM.
  • HY-11003
    GW843682X Inhibitor 99.84%
    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.
  • 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.
  • HY-12037
    Rigosertib sodium Inhibitor 99.49%
    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.
  • HY-12037A
    Rigosertib Inhibitor 98.81%
    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.
  • HY-18683
    Centrinone-B Inhibitor 98.97%
    Centrinone-B (LCR-323) is a potent and highly selective PLK4 inhibitor, with a Ki of 0.59 nM.
  • HY-15161
    Ro3280 Inhibitor 99.28%
    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.
  • HY-15155
    MLN0905 Inhibitor
    MLN0905 is a potent PLK1 inhibitor, with an IC50 of 2 nM.
  • HY-15160
    TAK-960 Inhibitor
    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.
  • HY-12134
    Poloxin Inhibitor 98.96%
    Poloxin is a non-ATP competitive Polo-like Kinase 1 (PLK1) inhibitor that targets the polo-box domain, with an IC50 of appr 4.8 μM.
  • HY-12045
    HMN-214 Inhibitor 99.65%
    HMN-214, an orally bioavailable prodrug of HMN-176, is an inhibitor of polo-like kinase-1 (plk1), with antitumor activity.
  • HY-15158
    SBE13 Hydrochloride Inhibitor 98.76%
    SBE13 Hydrochloride is a potent and selective Plk1 inhibitor, with an IC50 of 200 pM; SBE13 Hydrochloride poorly inhibits Plk2 (IC50>66 μM) or Plk3 (IC50=875 nM).
  • HY-18009
    LFM-A13 Inhibitor 99.97%
    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.
Isoform Specific Products

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