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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-RS10719
    Plk3 Rat Pre-designed siRNA Set A
    Inhibitor

    Plk3 Rat Pre-designed siRNA Set A contains three designed siRNAs for Plk3 gene (Rat), as well as a negative control, a positive control, and a FAM-labeled negative control.

    Plk3 Rat Pre-designed siRNA Set A
    Plk3 Rat Pre-designed siRNA Set A
  • HY-12135
    Poloxipan
    Inhibitor
    Poloxipan is a pan-specific polo-like kinase (PLK) inhibitor that can inhibit a non-catalytic region at the C-terminus called the Polo-box domain (PBD) found in kinases. The IC50 values for Poloxipan against the PBDs of PLK-1/2/3 are 3.2 μM, 1.7 μM, and 3.0 μM, respectively. Poloxipan also inhibits other phospho-tyrosine binding domains, such as the forkhead-associated (FHA) domain of CHK-2, the WW domain of peptidyl-prolyl cis/trans isomerase (PIN1), and the phospho-tyrosine binding domains of STAT1/3/5 and lymphocyte-specific protein tyrosine kinase's SH2 domain. Poloxipan can be used in cancer research.
    Poloxipan
  • HY-172677
    IIP0943
    Inhibitor
    IIP0943 is a selective inhibitor of PLK1 (polo-like kinase 1), with an IC50 of 5.1 nM for PLK1. In addition, IIP0943 exhibits antiproliferative activity against HCT116 cells, with an IC50 of 0.22 µM. These results suggest that IIP0943 holds promise for research in the field of cancer therapeutics.
    IIP0943
  • HY-15160A
    TAK-960 hydrochloride
    Inhibitor
    TAK-960 hydrochloride is an orally available, selective inhibitor of polo-like kinase 1 (PLK1), with an IC50 of 0.8 nM. TAK-960 hydrochloride also shows inhibitory activities against PLK2 and PLK3, with IC50s of 16.9 and 50.2 nM, respectively. TAK-960 hydrochloride inhibits proliferation of multiple cancer cell lines and exhibits significant efficacy against multiple tumor xenografts.
    TAK-960 hydrochloride
  • HY-129265
    Poloxin-2
    Inhibitor
    Poloxin-2 is a small molecule Plk1 PBD inhibitor that can effectively induce cell mitotic arrest with an EC50 of approximately 15 μM in HeLa cells. Poloxin-2HT was developed by conjugating a hydrophobic tag (HT) to Poloxin-2, a new application of inhibitors targeting protein-protein interactions. Poloxin-2HT significantly enhanced the effects on cell viability and apoptosis by selectively degrading Plk1 protein, and its effect was stronger than that of untagged Poloxin-2. These data validate hydrophobic tags as a new strategy for targeting and disrupting disease-associated proteins.
    Poloxin-2
  • HY-W276819
    PLK1-IN-9
    Inhibitor
    PLK1-IN-9 (Compound M2) is an inhibitor for polo-like kinase 1 (PLK1), that inhibits PLK proteins modified with peptides 1010pT, cdc25c and PBIP, with IC50s of 1.6, 0.8 and 1.4 μM, respectively. PLK1-IN-9 inhibits proliferations of cancer cells HeLa, HL60, SNU387/499, HepG2, exhibits cytotoxicity and induces apoptosis. PLK1-IN-9 inhibits tumor growth in HepG2 xenograft mouse model.
    PLK1-IN-9
  • HY-12300A
    Ocifisertib hydrochloride
    Inhibitor
    Ocifisertib hydrochloride (CFI-400945 hydrochloride) is the hydrochloride salt form of Ocifisertib (HY-12300). Ocifisertib hydrochloride is an orally active PLK4 inhibitor with a Ki and an IC50 of 0.26 nM and 2.8 nM. Ocifisertib hydrochloride inhibits growth of various cancer cells, arrests cell cycles at G2/M phase, and induces apoptosis. Ocifisertib hydrochloride exhibits antitumor efficacy in mouse model.
    Ocifisertib hydrochloride
  • HY-160624
    CD 10899
    Inhibitor
    CD 10899 is a hydroxylated metabolite of Volasertib (HY-12137). CD 10899 is pharmacologically active against Polo-like kinase 1 (PLK1) (IC50: 6 nM). Volasertib is an orally active, highly potent and ATP-competitive PLK1 inhibitor. CD 10899 can be used for research of cancer.
    CD 10899
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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