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-N13795
    3,4,3'-Tri-O-methylflavellagic acid
    		Inhibitor
    3,4,3'-Tri-O-methylflavellagic acid is a flavonoid inhibitor that targets αβ-tubulin (colchicine binding site) and polo-like kinase-1 (PLK-1), and can be isolated from the roots of Anogeissus leiocarpus. 3,4,3'-Tri-O-methylflavellagic acid interferes with microtubule assembly dynamics and kinase activity, exhibiting anti-cancer cell proliferation and potent anti-nociceptive effects.
    3,4,3'-Tri-O-methylflavellagic acid
  • HY-161521
    PLK1-IN-10
    		Inhibitor
    PLK1-IN-10 (Compound 4Bb) is an orally active PLK1 PBD (polo-box domain) inhibitor. PLK1-IN-10 blocks the interaction of PLK1 with the cell division regulator protein 1 (PRC1) and decreases the protein expression of the CDK1-Cyclin B1 complex. PLK1-IN-10 reacts with glutathione (GSH) to increase cellular oxidative stress, ultimately leading to cell death.
    PLK1-IN-10
  • HY-RS10717
    PLK3 Human Pre-designed siRNA Set A
    		Inhibitor

    PLK3 Human Pre-designed siRNA Set A contains three designed siRNAs for PLK3 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.
    PLK3 Human Pre-designed siRNA Set A
  • HY-15160C
    TAK-960 monohydrochloride
    		Inhibitor
    TAK-960 monohydrochloride is an orally available, selective inhibitor of polo-like kinase 1 (PLK1), with an IC50 of 0.8 nM. TAK-960 monohydrochloride also shows inhibitory activities against PLK2 and PLK3, with IC50s of 16.9 and 50.2 nM, respectively. TAK-960 monohydrochloride inhibits proliferation of multiple cancer cell lines and exhibits significant efficacy against multiple tumor xenografts.
    TAK-960 monohydrochloride
  • HY-104023
    ZK-Thiazolidinone
    		Inhibitor
    ZK-Thiazolidinone is an ATP-competitive Polo-like kinase 1 (Plk1) inhibitor with an IC50 of 19 nM. ZK-Thiazolidinone inhibits tumor cell proliferation, induces cell cycle arrest and typical mitotic defects. ZK-Thiazolidinone impairs the recruitment of γ-tubulin and Aurora A kinase to centrosomes, resulting in failure of bipolar spindle maintenance and sister chromatid arm cohesion.\nZK-Thiazolidinone is applicable for cancer research.
    ZK-Thiazolidinone
  • HY-161046
    PLK1-IN-8
    		Inhibitor
    PLK1-IN-8 (compound TE6) is a PLK1 inhibitor, and inhibits cell proliferation by blocking the cell cycle at G2 phase. PLK1-IN-8 shows anticancer activity in vivo.
    PLK1-IN-8
  • HY-179103
    PLK4-IN-5
    		Inhibitor
    PLK4-IN-5 (compound 5f) is a PLK4 (IC50 = 0.8 nM) inhibitor. PLK4-IN-5 can inhibit MCF-7 cell clone formation, induce cell cycle arrest (S/G2 phase), and apoptosis. PLK4-IN-5 has anti proliferative activity against MCF-7 cells (IC50 = 0.48 μM). PLK4-IN-5 can be used in the research of cancer such as breast cancer.
    PLK4-IN-5
  • HY-50698A
    (S)-BI 2536
    		Inhibitor
    (S)-BI 2536 (Compound 39g) is the enantiomer of BI 2536 (HY-50698). (S)-BI 2536 acts as an inhibitor of the BRD4 bromodomain and PLK1 kinase, with a Ki value of 54 nM against BRD4 and a Ki value of 0.42 nM against PLK1 kinase. (S)-BI 2536 exhibits anticancer activity against acute myeloid leukemia. (S)-BI 2536 can be used for the research of acute myeloid leukemia.
    (S)-BI 2536
  • HY-156336
    PLK1-IN-7
    		Inhibitor
    PLK1-IN-7 (compound 30e) is a potent PLK1 inhibitor, with an IC50 of 0.66 nM. PLK1-IN-7 exhibits antiproliferative and antitumor activities.
    PLK1-IN-7
  • 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
  • HY-15155R
    MLN0905 (Standard)
    		Inhibitor
    MLN0905 (Standard) is the analytical standard of MLN0905. This product is intended for research and analytical applications. 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 (Standard)
  • 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-102069R
    3MB-PP1 (Standard)
    		Inhibitor
    3MB-PP1 (Standard) is the analytical standard of 3MB-PP1 (HY-102069). This product is intended for research and analytical applications. 3MB-PP1, a bulky purine analog, is a Polo-like kinase 1 (Plk1) inhibitor. 3MB-PP1 blocks mitotic progression and cell division arise through target Plk1 in in cells expressing analog-sensitive Plk1 alleles. 3MB-PP1 specifically inhibits the activity of analog-sensitive Ssn3 (Cdk8). 3MB-PP1 inhibits Leu93 Mutant Zipper-interacting protein kinase (Leu93-ZIPK; IC50=2 μM). 3MB-PP1 can be used for the research of hypha formation of Candida albicans and cell division.
    3MB-PP1 (Standard)
  • HY-181051
    PLK1-IN-16
    		Inhibitor
    PLK1-IN-16 is a selective polo-like kinase 1 (PLK1) inhibitor with an IC50 of 0.25 nM. PLK1-IN-16 exhibits lower inhibitory potency against PLK2 and PLK3, induces G2 phase cell cycle arrest, induces apoptosis, and exhibits antiproliferative activity against tumor cells. PLK1-IN-16 can be stable under simulated gastric acid environmental conditions, and acceptable CYP 450 inhibition. PLK1-IN-16 can be used for the study of triple-negative breast cancer (TNBC), breast cancer, leukemia.
    PLK1-IN-16
  • 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-181030
    BDE30671203
    		Inhibitor
    BDE30671203 is a highly selective PLK1 inhibitor (IC50 = 2.163 nM). BDE30671203 induces G2/M phase arrest and Apoptosis. BDE30671203 downregulates key cell cycle regulators (CDC20, CDK1) and the anti-apoptotic gene Bcl-2. BDE30671203 exhibits anticancer activity against non-small cell lung cancer, large cell lung cancer, and liver cancer.
    BDE30671203
  • 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
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
Polo-like Kinase (PLK) Isoform Comparison

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