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Product Name
Anti-PLK1/PLK-1 antibody
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Description
Rabbit polyclonal to PLK1/PLK-1
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Tested applications
IF, ICC/IF
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Species reactivity
Human PLK1 / PLK-1
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Alternative names
PLK antibody; STPK13 antibody; Plk antibody; STPK13 antibody; Plk antibody; PLK antibody; Plk1 antibody; PLK1 antibody; STPK13 antibody; STPK13 antibody
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Isotype
Rabbit IgG
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Preparation
Produced in rabbits immunized with a synthetic peptide corresponding to the center region of the Human PLK1 / PLK-1, and purified by antigen affinity chromatography.
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Clonality
Polyclonal
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Formulation
0.2 μm filtered solution in PBS
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Storage instructions
This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -80℃. Preservative-Free.
Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles. -
Applications
ICC/IF: 0.5-1.5 μg/mL
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Validations
PLK1 / PLK-1 Antibody, Rabbit PAb, Antigen Affinity Purified, Immunofluorescence
Immunofluorescence staining of PLK1 in HeLa cells. Cells were fixed with 4% PFA,blocked with 10% serum. Then incubated with rabbit anti-human PLK1 polyclonal antibody (1 µg/ml)(Figure A), incubated with rabbit anti-human PLK1 polyclonal antibody and antigen (Figure B) at 4℃ overnight. Then cells were stained with the Alexa Fluor®488-conjugated Goat Anti-rabbit IgG secondary antibody (green) and counterstained with DAPI (blue). Positive staining was localized to nucleus.
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Background
Serine / threonine-protein kinase PLK1 / PLK-1, also known as polo-like kinase 1 (PLK-1) or serine / threonine-protein kinase 13 (STPK13), Polo-like kinases (PLKs), is a family of four serine / threonine protein kinases that are critical regulators of cell cycle progression, mitosis, cytokinesis, and the DNA damage response. PLK1 / PLK-1 is ubiquitously expressed. The mRNA and protein expression of PLK1 / PLK-1, -2 and -4 are coordinately regulated during cell cycle progression, but PLK3 levels are independent of the other three family members. PLK1 / PLK-1 is the most well characterized member of this family and strongly promotes the progression of cells through mitosis. During the various stages of mitosis PLK1 / PLK-1 localizes to the centrosomes, kinetochores and central spindle. PLKs are dysregulated in a variety of human cancers. PLK1 / PLK-1 overexpression correlates with cellular proliferation and poor prognosis. 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 APC / C inhibitors, and the regulation of mitotic exit and cytokinesis. It is required for recovery after DNA damage checkpoint and entry into mitosis. PLK1 / PLK-1 is required for kinetochore localization of BUB1B, spindle pole localization of isoform 3 of SGOL1 and plays a role in regulating its centriole cohesion function. PLK1 / PLK-1 Phosphorylates BORA, and thereby promotes the degradation of BORA. PLK1 / PLK-1 also contributes to the regulation of AURKA function and phosphorylates SGOL1.
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References
- Lee KS, et al. (2008) Self-regulated mechanism of Plk1 localization to kinetochores: lessons from the Plk1-PBIP1 interaction. Cell Div. 3: 4.
- Zhou T, et al. (2003) A role for Plk1 phosphorylation of NudC in cytokinesis. Dev Cell. 5 (1): 127-38.
- Lee M, et al. (2004) Phosphorylation of BRCA2 by the Polo-like kinase Plk1 is regulated by DNA damage and mitotic progression. Oncogene. 23 (4): 865-72.
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