Recombinant human PLK1 protein (ab51426)
Key features and details
- Expression system: Baculovirus infected Sf9 cells
- Purity: > 70% Affinity purified
- Active: Yes
- Tags: His tag N-Terminus
- Suitable for: WB, Functional Studies, SDS-PAGE, IHC-P
Description
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Product name
Recombinant human PLK1 protein
See all PLK1 proteins and peptides -
Biological activity
Specific activity 17nmol/min/mg.
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Purity
> 70 % Affinity purified.
Purified by affinity chromatography -
Expression system
Baculovirus infected Sf9 cells -
Accession
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Protein length
Full length protein -
Animal free
No -
Nature
Recombinant -
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Species
Human -
Sequence
MSAAVTAGKL ARAPADPGKA GVPGVAAPGA PAAAPPAKEI PEVLVDPRSR RRYVRGRFLG KGGFAKCFEI SDADTKEVFA GKIVPKSLLL KPHQREKMSM EISIHRSLAH QHVVGFHGFF EDNDFVFVVL ELCRRRSLLE LHKRRKALTE PEARYYLRQI VLGCQYLHRN RVIHRDLKLG NLFLNEDLEV KIGDFGLATK VEYDGERKKT LCGTPNYIAP EVLSKKGHSF EVDVWSIGCI MYTLLVGKPP FETSCLKETY LRIKKNEYSI PKHINPVAAS LIQKMLQTDP TARPTINELL NDEFFTSGYI PARLPITCLT IPPRFSIAPS SLDPSNRKPL TVLNKGLENP LPERPREKEE PVVRETGEVV DCHLSDMLQQ LHSVNASKPS ERGLVRQEEA EDPACIPIFW VSKWVDYSDK YGLGYQLCDN SVGVLFNDST RLILYNDGDS LQYIERDGTE SYLTVSSHPN SLMKKITLLK YFRNYMSEHL LKAGANITPR EGDELARLPY LRTWFRTRSA IILHLSNGSV QINFFQDHTK LILCPLMAAV TYIDEKRDFR TYRLSLLEEY GCCKELASRL RYARTMVDKL LSSRSASNRL KAS -
Predicted molecular weight
70 kDa -
Amino acids
1 to 603 -
Tags
His tag N-Terminus
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Associated products
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Related Products
Specifications
Our Abpromise guarantee covers the use of ab51426 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Applications
Western blot
Functional Studies
SDS-PAGE
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
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Form
Liquid -
Additional notes
ab91090 (Cow Casein full length protein) can be utilized as a substrate for assessing Kinase activity
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Concentration information loading...
Preparation and Storage
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Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
pH: 7.00
Constituents: 0.00174% PMSF, 0.82% Sodium phosphate, 0.00308% DTT, 25% Glycerol (glycerin, glycerine), 1.74% Sodium chlorideThis product is an active protein and may elicit a biological response in vivo, handle with caution.
General Info
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Alternative names
- Cell cycle regulated protein kinase
- PLK
- PLK 1
see all -
Function
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. Required for recovery after DNA damage checkpoint and entry into mitosis. Required for kinetochore localization of BUB1B. Phosphorylates SGOL1. Required for spindle pole localization of isoform 3 of SGOL1 and plays a role in regulating its centriole cohesion function. Phosphorylates BORA, and thereby promotes the degradation of BORA. Contributes to the regulation of AURKA function. Regulates TP53 stability through phosphorylation of TOPORS. -
Tissue specificity
Placenta and colon. -
Sequence similarities
Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. CDC5/Polo subfamily.
Contains 2 POLO box domains.
Contains 1 protein kinase domain. -
Developmental stage
Accumulates to a maximum during the G2 and M phases, declines to a nearly undetectable level following mitosis and throughout G1 phase, and then begins to accumulate again during S phase. -
Post-translational
modificationsCatalytic activity is enhanced by phosphorylation of Thr-210. Phosphorylation at Thr-210 is first detected on centrosomes in the G2 phase of the cell cycle, peaks in prometaphase and gradually disappears from centrosomes during anaphase.
Autophosphorylation and phosphorylation of Ser-137 may not be significant for the activation of PLK1 during mitosis, but may enhance catalytic activity during recovery after DNA damage checkpoint.
Ubiquitinated by the anaphase promoting complex/cyclosome (APC/C) in anaphase and following DNA damage, leading to its degradation by the proteasome. Ubiquitination is mediated via its interaction with FZR1/CDH1. Ubiquitination and subsequent degradation prevents entry into mitosis and is essential to maintain an efficient G2 DNA damage checkpoint. -
Cellular localization
Nucleus. Chromosome > centromere > kinetochore. Cytoplasm > cytoskeleton > centrosome. During early stages of mitosis, the phosphorylated form is detected on centrosomes and kinetochores. Localizes to the outer kinetochore. Presence of SGOL1 and interaction with the phosphorylated form of BUB1 is required for the kinetochore localization. - Information by UniProt
Images
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Functional Studies - Recombinant human PLK1 protein (ab51426)The specific activity of PLK1 (ab51426) was determined to be 16.5 nmol/min/mg as per activity assay protocol
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SDS-PAGE - Recombinant human PLK1 protein (ab51426)SDS PAGE analysis of ab51426 -
Functional Studies - Recombinant human PLK1 protein (ab51426)Kinase activity assay. Specific activity 17 nmol/min/mg. -
SDS-PAGE - Recombinant human PLK1 protein (ab51426)Recombiant human PLK1 protein (His tagged). Molecular weight 70 kDa. -
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Recombinant human PLK1 protein (ab51426)Immunohistochemistry of Human Lymphoma tissue staining PLK1 with ab51426 at 1/40. Control is treated with fusion protein.
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
Datasheets and documents
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SDS download
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Datasheet download
References (1)
ab51426 has been referenced in 1 publication.
- Mao Y et al. Targeting TEAD/YAP-transcription-dependent necrosis, TRIAD, ameliorates Huntington's disease pathology. Hum Mol Genet 25:4749-4770 (2016). PubMed: 28171658