PLK1 Antibody

  • 货号:
  • 规格:
  • 图片:
    • Immunohistochemistry of paraffin-embedded human colon cancer using CSB-PA018193LA01HU at dilution of 1:100
    • Immunofluorescence staining of A549 cells with CSB-PA018193LA01HU at 1:133, counter-stained with DAPI. The cells were fixed in 4% formaldehyde, permeabilized using 0.2% Triton X-100 and blocked in 10% normal Goat Serum. The cells were then incubated with the antibody overnight at 4°C. The secondary antibody was Alexa Fluor 488-congugated AffiniPure Goat Anti-Rabbit IgG(H+L).
  • 其他:


  • 产品名称:
    Rabbit anti-Homo sapiens (Human) PLK1 Polyclonal antibody
  • Uniprot No.:
  • 基因名:
  • 别名:
    Cell cycle regulated protein kinase antibody; PLK 1 antibody; PLK antibody; PLK-1 antibody; plk1 antibody; PLK1_HUMAN antibody; Polo like kinase 1 antibody; Polo-like kinase 1 antibody; Serine/threonine protein kinase 13 antibody; Serine/threonine protein kinase PLK1 antibody; Serine/threonine-protein kinase 13 antibody; Serine/threonine-protein kinase PLK1 antibody; STPK 13 antibody; STPK13 antibody
  • 宿主:
  • 反应种属:
  • 免疫原:
    Recombinant Human Serine/threonine-protein kinase PLK1 protein (1-603AA)
  • 免疫原种属:
    Homo sapiens (Human)
  • 标记方式:
  • 克隆类型:
  • 抗体亚型:
  • 纯化方式:
    >95%, Protein G purified
  • 浓度:
    It differs from different batches. Please contact us to confirm it.
  • 保存缓冲液:
    Preservative: 0.03% Proclin 300
    Constituents: 50% Glycerol, 0.01M PBS, PH 7.4
  • 产品提供形式:
  • 应用范围:
  • 推荐稀释比:
    Application Recommended Dilution
    IHC 1:20-1:200
    IF 1:50-1:200
  • Protocols:
  • 储存条件:
    Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
  • 货期:
    Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.


  • 功能:
    Serine/threonine-protein kinase that performs several important functions throughout M phase of the cell cycle, including the regulation of centrosome maturation and spindle assembly, the removal of cohesins from chromosome arms, the inactivation of anaphase-promoting complex/cyclosome (APC/C) inhibitors, and the regulation of mitotic exit and cytokinesis. Polo-like kinase proteins acts by binding and phosphorylating proteins are that already phosphorylated on a specific motif recognized by the POLO box domains. Phosphorylates BORA, BUB1B/BUBR1, CCNB1, CDC25C, CEP55, ECT2, ERCC6L, FBXO5/EMI1, FOXM1, KIF20A/MKLP2, CENPU, NEDD1, NINL, NPM1, NUDC, PKMYT1/MYT1, KIZ, PPP1R12A/MYPT1, PRC1, RACGAP1/CYK4, SGO1, STAG2/SA2, TEX14, TOPORS, p73/TP73, TPT1, WEE1 and HNRNPU. Plays a key role in centrosome functions and the assembly of bipolar spindles by phosphorylating KIZ, NEDD1 and NINL. NEDD1 phosphorylation promotes subsequent targeting of the gamma-tubulin ring complex (gTuRC) to the centrosome, an important step for spindle formation. Phosphorylation of NINL component of the centrosome leads to NINL dissociation from other centrosomal proteins. Involved in mitosis exit and cytokinesis by phosphorylating CEP55, ECT2, KIF20A/MKLP2, CENPU, PRC1 and RACGAP1. Recruited at the central spindle by phosphorylating and docking PRC1 and KIF20A/MKLP2; creates its own docking sites on PRC1 and KIF20A/MKLP2 by mediating phosphorylation of sites subsequently recognized by the POLO box domains. Phosphorylates RACGAP1, thereby creating a docking site for the Rho GTP exchange factor ECT2 that is essential for the cleavage furrow formation. Promotes the central spindle recruitment of ECT2. Plays a central role in G2/M transition of mitotic cell cycle by phosphorylating CCNB1, CDC25C, FOXM1, CENPU, PKMYT1/MYT1, PPP1R12A/MYPT1 and WEE1. Part of a regulatory circuit that promotes the activation of CDK1 by phosphorylating the positive regulator CDC25C and inhibiting the negative regulators WEE1 and PKMYT1/MYT1. Also acts by mediating phosphorylation of cyclin-B1 (CCNB1) on centrosomes in prophase. Phosphorylates FOXM1, a key mitotic transcription regulator, leading to enhance FOXM1 transcriptional activity. Involved in kinetochore functions and sister chromatid cohesion by phosphorylating BUB1B/BUBR1, FBXO5/EMI1 and STAG2/SA2. PLK1 is high on non-attached kinetochores suggesting a role of PLK1 in kinetochore attachment or in spindle assembly checkpoint (SAC) regulation. Required for kinetochore localization of BUB1B. Regulates the dissociation of cohesin from chromosomes by phosphorylating cohesin subunits such as STAG2/SA2. Phosphorylates SGO1
  • 基因功能参考文献:
    1. Plk1 overexpression has tumor-suppressive properties by perturbing mitotic progression and cytokinesis. PMID: 30069007
    2. These findings indicate that PLK1 might be a potential therapeutic target for the treatment of sepsis-induced intestinal barrier dysfunction. PMID: 29348559
    3. a transcription-independent mechanism for Stat3-mediated centrosome clustering that involves Stathmin, a Stat3 interactor involved in microtubule depolymerization, and the mitotic kinase PLK1, is reported. PMID: 28474672
    4. expression in oral squamous cell carcinoma and oral submucous fibrosis PMID: 29652009
    5. Analyses with phospho-defective and phospho-mimetic mutants of FoxM1b identified a critical role of the Plk1 phosphorylation sites in regulating the binding of FoxM1b to Rb and DNMT3b. PMID: 28387346
    6. A significant over expression of forkhead box protein M1 (FOXM1), polo-like kinase 1 (PLK1) and centrosomal protein 55 (CEP55) was observed in tumor samples compared to adjacent and normal bladder tissues, suggesting they may be potential candidate's biomarkers for early diagnosis and targets for cancer therapy. PMID: 30277841
    7. The results of the study suggest that miR23a inhibits pancreatic cancer (PC) cell progression by directly targeting PLK1associated signaling and promoting miR23a expression may be a potential method for treating patients with PC. PMID: 29749476
    8. TPX2 promotes the proliferation and migration of human OC cells by regulating PLK1 expression. PMID: 29865033
    9. Findings indicate a critical role for Polo-like kinase 1 (Plk1) in regulating biosynthesis in cancer cells. PMID: 29138396
    10. Observations demonstrated that Plk1 directly interacts with RNF2 and degrades RNF2 via the ubiquitindependent degradation pathway. PMID: 29565459
    11. PLK1 was upregulated in the SGC-7901/DDP (cisplatin-resistant) gastric cancer cells compared with the SGC-7901 cells. PMID: 29393385
    12. let-7b targets PLK1 to inhibit hepatocellular carcinoma cell growth and induce their apoptosis by attenuating the PLK1-mediated Survivin phosphorylation PMID: 29913237
    13. an elevated PLK1 level significantly predicted unfavorable overall survival (hazard ratio = 1.78, 95% CI: 1.10-2.88, P = 0.019) and was correlated with female gender (OR = 0.73, 95% CI: 0.56-0.95, P = 0.017), tumor thrombus (OR = 3.97, 95% CI: 1.46-10.78, P < 0.001), metastasis (OR = 3.46, 95% CI: 1.33-9.01, P = 0.011), pathologic stage (OR = 1.56, 95% CI: 1.17-2.07, P = 0.002). PMID: 29843122
    14. that SUMOylation is an important regulatory mechanism governing PLK1's mitotic function PMID: 29166606
    15. The authors show that human Cyclin-Dependent-Kinases (CDKs) target the RAD9 subunit of the 9-1-1 checkpoint clamp on Thr292, to modulate DNA damage checkpoint activation. Thr292 phosphorylation on RAD9 creates a binding site for Polo-Like-Kinase1 (PLK1), which phosphorylates RAD9 on Thr313. PMID: 29254517
    16. hnRNPK regulates PLK1 expression by competing with the PLK1-targeting miRNAs, miR-149-3p and miR-193b-5p. PMID: 28708135
    17. The expression of APC-DeltaC in colon cells reduces the accumulation of mitotic cells upon PLK1 inhibition, accelerates mitotic exit and increases the survival of cells with enhanced chromosomal abnormalities. PMID: 29549256
    18. Polo-like kinase inhibition can sensitize cholangiocarcinoma cells to cisplatin-induced apoptosis with proteasomal Bcl-2 degradation as an additional pro-apoptotic effect. PMID: 28652654
    19. Results showed that Polo-like kinase 1 (Plk1) plays an important role in the conversion of cancer stem cells (CSCs) between active and quiescent states. PMID: 28430578
    20. Authors demonstrated that WDR62 is a PLK1 substrate that is phosphorylated at Ser 897, and that this phosphorylation at the spindle poles promotes astral microtubule assembly to stabilize spindle orientation. PMID: 28973348
    21. findings thus elucidate a critical role for Plk1 in CyclinB1-Cdk1 activation and mitotic entry and outline how CyclinA2-Cdk, an S-promoting factor, poises cells for commitment to mitosis. PMID: 28591578
    22. Data show that a microRNA-mimic to increase miR-34a together with siRNA to silence PLK1 oncogene prolonged survival. PMID: 29295989
    23. PLK1 inhibitors may be effective for patients with high-risk or relapsed neuroblastomas with upregulated PLK1. PMID: 28036269
    24. The authors found that SYP-4 is phosphorylated dependent on Polo-like kinases PLK-1/2. They propose a model in which Polo-like kinases recognize crossover designation and phosphorylate SYP-4 thereby stabilizing the synaptonemal complex and making chromosomes less permissive for further double-strand break formation. PMID: 28346135
    25. Data suggest that FBXW7, MCL1 and PLK1 may be relevant predictive markers of tumor progression and response to paclitaxel treatment. PMID: 27409838
    26. we have identified lnc-RI as a new regulator of mitosis which acts by releasing PLK1 mRNA activity via competition for binding to miRNA-210-3p. PMID: 27160062
    27. A FAK-Src signaling pathway downstream of integrin-mediated cell adhesion was found to decelerate both PLK1 degradation and CEP55 accumulation at the midbody. These data identify the regulation of PLK1 and CEP55 as steps where integrins exert control over the cytokinetic abscission. PMID: 27127172
    28. Data indicate that the mitotic kinase Polo-like kinase 1 (PLK1) was an important effector of S1P-S1P5 signaling, and a new function of the SphK1-S1P pathway specifically in the control of mitosis in HeLa cells. PMID: 28351953
    29. proviral action associated with biogenesis of the nucleocapsid PMID: 28445592
    30. identified Polo-like kinase 1 (PLK1), a major signaling hub in the spindle subnetwork, as phosphorylated at the conserved Tyr(217) in the kinase domain. Substitution of Tyr(217) with a phosphomimetic residue eliminated PLK1 activity in vitro and in cells. PMID: 27965426
    31. PLK1 inhibition mitigates autophagy in cancer cells both under nutrient starvation and sufficiency, and a role of PLK1 in autophagy is also observed in the invertebrate model organism Caenorhabditis elegans. PMID: 28102733
    32. a novel p53-independent regulation of PLK1 during CRC differentiation and apoptosis. PMID: 28341486
    33. Results show that PLK1 is overexpressed in diffuse intrinsic pontine gliomas. PMID: 27538997
    34. Mutant IDH1 promotes checkpoint adaptation which can be exploited therapeutically with the combination of TMZ and a PLK1 inhibitor, indicating PLK1 inhibitors may be clinically valuable in the treatment of IDH1 mutant gliomas PMID: 28178660
    35. Genistein induced mitotic arrest by inhibiting Plk1 activity and, consequently, led to mitotic catastrophe and apoptosis. Tumor cells with TP53 mutations were more sensitive to cell death by treatment of genistein. PMID: 27861885
    36. we show that Plk1 phosphorylates Mre11 at S649 during G2 DNA damage recovery and Mre11 phosphorylation at S649/S689 drives premature checkpoint termination and reduced DNA repair PMID: 28512243
    37. We propose that the DDR targets recruitment of Aurora A to the Plk1/Bora complex to prevent activation of Plk1 during DNA damage in G2. PMID: 27721411
    38. Studies provide evidence that PLK1 plays a role during cell cycle progression and human pediatric cancer. [review] PMID: 26302797
    39. Small molecule inhibition of polo-like kinase 1 by volasertib (BI 6727) causes significant melanoma growth delay and regression in vivo. PMID: 27793694
    40. Mutations of the LIM protein AJUBA mediate sensitivity of head and neck squamous cell carcinomas to treatment with PLK1 inhibitors. PMID: 28126323
    41. PLK1 may be an important regulator of metabolism maintenance in melanoma cells. PMID: 28235541
    42. The authors show that a global spread of ATM activity on chromatin and phosphorylation of ATM targets including KAP1 control Plk1 re-activation. These phosphorylations are rapidly counteracted by the chromatin-bound phosphatase Wip1, allowing cell cycle restart despite persistent ATM activity present at DNA lesions. PMID: 28607002
    43. These data implicate the insulin-FoxM1/PLK1/CENP-A pathway-regulated mitotic cell-cycle progression as an essential component in the beta cell adaptation to delay and/or prevent progression to diabetes. PMID: 28286049
    44. Inhibition of PLK1 activity or overexpression of a non-phosphorylatable PLK1 mutant reduces the polyploid cell population. PMID: 27398835
    45. the mechanism of Plk1 activation and the potential role of Bora phosphorylation by Cdk1, is reported. PMID: 27831827
    46. centrosome maturation occurs during interphase in an MLK-dependent manner, independent of the classic mitotic kinase, Plk1. PMID: 27219065
    47. High PLK1 expression is associated with hepatocellular carcinoma. PMID: 28267710
    48. centrosome protein Dzip1 mediates the assembly of the BBSome-Dzip1-PCM1 complex in the centriolar satellites (CS) at the G0 phase for ciliary translocation of the BBSome. Phosphorylation of Dzip1 at Ser-210 by Plk1 (polo-like kinase 1) during the G2 phase promotes disassembly of this complex, resulting in removal of Dzip1 and the BBSome from the CS. PMID: 27979967
    49. miR-509-3-5p is a strong suppressor of cancer via targeting PLK1. PMID: 27498003
    50. These findings suggest that Plk1 regulates smooth muscle contraction by modulating vimentin phosphorylation at Ser-56. PMID: 27662907



  • 相关疾病:
    Defects in PLK1 are associated with some cancers, such as gastric, thyroid or B-cell lymphomas. Expression is cancer increased in tumor tissues with a poor prognosis, suggesting a role in malignant transformations and carcinogenesis.
  • 亚细胞定位:
    Nucleus, Chromosome, centromere, kinetochore, Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, Cytoplasm, cytoskeleton, spindle, Midbody
  • 蛋白家族:
    Protein kinase superfamily, Ser/Thr protein kinase family, CDC5/Polo subfamily
  • 组织特异性:
    Placenta and colon.
  • 数据库链接:

    HGNC: 9077

    OMIM: 602098

    KEGG: hsa:5347

    STRING: 9606.ENSP00000300093

    UniGene: Hs.592049